Animal Stories - Spotted Green Puffer


Animal-World Information about: Spotted Green Puffer

The Spotted Green Puffer is a very popular attraction and the most commonly available freshwater puffer fish!
Latest Animal Stories
Steve Bussard - 2007-02-14
Temperments very greatly with these guys! Most are very subdued and just plain happy go lucky. I have 2 of these guys in my 90 gallon with several other fish, all MILDLY agressive. When first introduced to the tank they nipped at the fins of my angel, but after approximately a week, they left her alone. Some don't stop and do need to be placed in their own tank, but most will do very well in a comunity tank as long as the tank has fish agressive enough to set these little guys straight. Other than that, they are a very cute, fun, friendly, smart, and entertaining fish to care for. I personally would put their temperment in a class similar to an oscar, but of course on a much smaller size scale. I suggest anyone that wants an easy to care for, fun to watch fish, get at least one of these cuties.

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  • Sarah Wheeler - 2014-07-23
    Aw that is so cute haha, before when we got a betta, we put him with some goldfish and of course he attacked. We caught him with a nat and held him in the net against the tank wall(no harm done just trappin him for 1 minuete).  everytime he flared we did this and t would spook him a bit. eventully this betta lived with several goldish and other types of fish and didnt bite anymore! We put this to the test with my green spotted puffers witch i was new at. when a puffer bit another puufer or fish we net him for a min. after that the puffers live with minnows (yes still brackish waters) and other fish and dont bite them! the good thing is they still eat live worms and snails but dont hurt any other fish.
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Sarah Wheeler - 2014-07-23
I also want to know a very good list of medicines to have for future refrences that are PUFFER SAFE! ive bought alot of medecines and in teeny tiny letters it will say "do not use on scaleless fish) or that sort. Please tell me your favorites whats worked for you and why you reccomend it and what it does thanks! ^___^

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Floveme - 2013-10-12
Help! My green spotted puffers eyes are yellow! I can't find anything about the coloration and wanted to know if it's normal?

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  • David Brough - 2013-10-19
    They should be yellow. You have a perfectly healthy puffer :)
  • Sarah Wheeler - 2014-07-23
    They should be yellow but the really weird thing is I had a green spotted puffer(my favorite ive ever had) he died recently ;"( his name was smoochy and his eyes were blue,not cloudy eye but just, blue. I thought it was the weirdest thing ever and can find nothing at all on th internet about this.
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Ashlee - 2014-07-17
I just bought a spotted puffer and I have had him for about two days and he won't eat the flakes that I feed him, so I was wondering if there is any other type of fish food I could feed him so he eats and stays healthy.

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  • Sarah Wheeler - 2014-07-19
    My puffers when i frist got them, I had NO expirience with them. But i figured out my young puffers 1-2 inch. will eat & love freeze-dried blood worms, and one of them loved ground foods. Also things like frozen shrimp or scallop but they didnt like it that much. Other then that when they got older around 2and a hald-3inch. they ate only foods like live worms, and other live things.
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Puffer lover - 2010-02-22
I have a puffer! His name is Larry and he's a green spot puffer. My mom thought he was a dwarf because we bought him last year and he's barely grown. But I can tell that he's a green spot for he has spots.
Anyways, I am an expert on taking care of green spot puffers, so if you need answered questions, just leave a reply for this and I'll get to you as soon as I can!

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  • Clara - 2010-02-22
    I recently got one for my birthday. My friend had also bought tropical fish food and it didn't seem to eat it. I just bought some live brine fish to feed it. But I don't know how much to feed it and what else specifically I should feed it. If you could help it would be much appreciated!
  • Deanna - 2010-02-27
    Hi! I recently bought an adorable puffer, about 3-4 days ago, and he won't seem to eat. I tried flakes of various sorts and freeze-dried blood worms and such. I bought a few snails today, I'm not sure what kind but they have round shells, and the one that fell right in front of him he ate right away in like one bite. I have a few other snails and a ghost shrimp with him in the tank but he seems to ignore them. Is it healthy for him to only eat one snail? And will he find the other snails because they look like the gravel or ever eat the shrimp? His belly is turning slightly gray too. If you have any ideas, it would be much appreciated as I'm attached to him already and don't want to lose him.
  • Aarin - 2010-03-03
    Just got 3 new puffers. I am totally in love with the little creatures. I have always had fish, and have been known for having a well kept tank. My 5yr old carnival gold fish just died and I decided to finally get those puffers I always wanted. Unfortunatly I didn't read up on them until I bought them..and I have them in a 5gallon tank. They were doing great for the first month, then a week ago I noticed their tail fins were closed all the time except for one of the fish, so I did a 25% water change. They went back to normal. Tonight I came home and turned on the lights and they were sleeping on the bottom of the tank, they seemed to wake up and their tail fins were all closed again. Do you think it is just the water quality? More salt? I just don't know. I plan on getting a larger tank, but it will be 2 months before I can do so...any info?
  • amber - 2010-03-07
    Hey I just bought a green spotted puffer (I think.) I read on here that it is important to know which one you buy but the green spotted/ green/ freshwater all look alike. I do think hes the green spotted though. When I bought him, he was labeled as spotted. When should I acclimate him to salt water? I just bought him today so im not sure how long he should be in fresh. Thanks
  • Stephen - 2010-03-07
    Hi my name is Stephen. Ok you see I have two spotted puffer fish and I was wondering what types of fish that I can mix them with. Oh and I have one more question how do u know if their boy or girl?
  • jackie - 2010-03-08
    I recently bought 2 puffers a month ago and went last week to buy some snails. The workers at Petco had one that they wanted to get rid of because it had a crooked spine, so I took him. Now i have 3. they are doing great and eat from my hand.
  • Josh - 2010-03-13
    what is the best algae eater to put in a 5gallon tank with my green spotted puffer, I had a pleco but zeppelin (my puffer) ate his fins and sadly he passed away. My mother tould me to get another but that is not the wisest thing to do. I would like to know what algae eater I should put in the tank with him.
  • samuel - 2010-03-19
    Hey how's it goen buddy. So what exactly do you feed your puffer and where do you buy its food? thanks for your time
  • April - 2010-03-28
    I am preparing to build a new fish community. Currently, my only experience is w/ cichlids (White & Black Convicts, Jack Dempsey, Blood Red Parrot) so this will be very different. I have a 26 gallon aquarium, which is completely empty right now. I wanted to begin my community with a Spotted Green Puffer. However, a woman @ the pet store told me that they are very aggressive, and it's best not to include the Puffer in a community. Any advice? I really want the Spotted Green Puffer...they're so cute! But I also want a community. I would appreciate any help you can offer.
  • Marc - 2010-04-04
    Question, Can A Geen Spotted Puffer Survive in a freshwater tank without salt? Interested in getting a couple but don't have a brackish tank.
  • sean davis - 2010-04-05
    Hi, my name is sean. I've had my green spotted puffer for about a year now, and haven't seen him inflate once, have you any idea why.
  • John Green - 2010-04-05
    How long is your puffer he might be a pea puffer.
  • Matt - 2010-04-07
    Is it alright for my green spotted puffer to be in freshwater? It is very active and about an inch long. And I was wondering if I should put him in my 55 gallon tank with 4 three inch long cichlids. One of my cichlids ate my smallest cichlid so I am a little worried. Thank You.
    PuffyBuddy
  • Marion - 2014-07-06
    Hi I have 2 baby gsp and I've noticed that they do sleep a lot but if I do come to the tank they will come straight is that normal?
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Megan - 2014-07-04
I have 2 green spotted puffer fish. One has always been smaller/ skinnier than the other. I fed them last night and the big one bit the little one. I didn't even see it happen because I was still dumping some blood worms in the tank and then looked down and saw a chunk of skin hanging off of his belly. Now that he has been grazing on the bottom of the tank - belly is gray in color of course - some blood worms are stuck in the wound! I don't know what to do! Do I catch him in a net and try to wipe the blood worms out of the wound with a q-tip or something?? Or will they fall out eventually? I feel so bad for him! I know these puffers should not even be sharing a tank but I rescued them from a friend and they have been fine for the 3 years I've had them. Any suggestions?

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  • Clarice Brough - 2014-07-22
    Keep the tank water clean with regular water changes, and as an added measure put in some Melafix (a tea oil treatment that will aid healing and in preventing infection).

    You can treat the wound, not only to clean it but also to avoid bacterial or fungal infection from taking hold. Do this by netting the puffer and placing it on a towel or some paper towels. Take a cotton swab and wipe off the worms and debris. Then take another clean cotton swab, dip it in iodine, and dab the entire wound. Lastly put neosporin on the wound and then gently reintroduce the fish back into his tank.
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TT - 2008-11-28
I wish people would quit about brackish requirements for keeping Spotted Green Puffers. It has no factual bases. The Spotted Green Puffer is an amazing fish. In their natural habitat they breed and spawn in Brackish water. However, adults typically migrate to freshwater. Adult Spotted Green Puffers have been found in Marine, Brackish and Freshwater habitats. They will do just fine in a freshwater tank. However, you can't just take one which has been living in brackish or marine environment and drop them into a freshwater environment. The reverse is also true. As long as you provide a clean freshwater environment with hardwater and a slightly higher ph, this great fish will do just fine. Don't spit out information you read on the internet from people whom have no idea what they're talking about.

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  • Blake D - 2010-04-25
    So can I expect any of the thirteen SGP’s in my small pond outside to breed? I gave them plenty of plants and a few small lilies for shade from the harsh southern Louisiana sun. Coolers and heaters keep the water temp between 75 and 81 degrees Fahrenheit year round. They never really show any aggressiveness towards there pond mates of neon tetras, mollies, platys, guppies, and the one loan beta. All other live bearers bread wildly with a high rate of fry survival. I even throw extra salt water from my reef tank into the pond and keep it at brackish levels. Should I be focused on planting swords? Or should I focus on giving them a more rocky type playground with slate standing straight up like discus use for there eggs? Or both?
  • Anonymous - 2010-08-19
    No, no, no, no, no, no.

    They are born in FRESHWATER, and migrate to higher salinities as they mature.

    You are right in mentioning that they require a higher pH... but don't dismiss the comments about the varying salinity these little guys require! Having your salinity bounce between 1.008-1.020 over the course a 2 months is ideal.
  • Christy - 2010-09-17
    That information does not come from information people read on the internet. It comes from actual experiences with green puffers doing extremely poor in freshwater conditions. I dont know if you have ever seen a green puffer in marine conditions, but i can guarantee it looks much better than yours.
  • des - 2011-02-22
    You are right.
  • coenobitaexpert - 2011-04-06
    I think we should just be kind to one another. No ones puffer fish looks any better than the rest. This comes from a marine biologist, specializing in Coenobitas. Just cool your puffers.
  • Anonymous - 2013-11-06
    My puffer got sucked into my filter and when i tried to see what was clogging my filter it poked me does anybody know if they are poisonous and can they harm humans
  • Clarice Brough - 2013-11-07
    The Green Spotted Puffers, such as Tetraodon nigroviridis and Tetraodon fluviatilis, absorb poisons from their food, specifically algae inside the guts of clams and other shellfish. When they stop feeding in the wild, the amount of poison slowly declines. Consequently most pufferfish found in captivity will be without poison.
  • Jo - 2013-11-20
    Hi. I am new to GSP fish. Got as a gift with all equipment that's should have. Problem is as was reading it needs brackish water. Went to the store which it was bought at and they said they are in freshwater in their store, looking healthy. Now mine is small so how do I adjust his water to brackish ? It's the only fish I got in this 100l tank and she is around 2 inches no more. Please help.
  • Shannon Ellen - 2014-05-20
    Hey fellow fish friends,

    I've had my 2 GSPs for 2 years.  I bought them as juveniles living in brackish water, with the salinity at about 1.014.  They have been living in a 20 gallon long tank with crushed coral and sand, and over the past 2 years, I have been raising the salinity of their water to match my saltwater tank.  2 weeks ago, I finally achieved my plan - the puffer tank water matched my saltwater tank with a salinity of 1.024.  Then I transferred my puffers into my saltwater tank.  Are they aggressive?  Not at all!  My saltwater tank has gobies, a blenny and a file fish.  Everyone is super happy together, and my puffers actually seem happier to have tank mates.  They have been nibbling on the live rock (helps keep their teeth filed down) and they are even eating flake and brine shrimp and mysis and still nibbling on the trumpet snails I drop in once a week.  My belief, from my experience, is that they do much better in a saltwater tank - maybe it's because the water is naturally harder and the pH is higher, but I find that they have been healthier and healthier as the salinity has been rising.  Just my experience.  Great discussion!
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Heidi - 2014-03-16
Hi! My husband and I have been the proud owners of a green spotted puffer (Penelope) for the last two years...we raised her in a 6 gallon fluval edge...which I know is way too small for her, but she's always been a very happy fish with a very white belly. We've also always just put aquarium salt in her tank...never marine salt. We've recently moved her to a much bigger 25 gallon tank. And she seems unhappy. Any suggestions? Also, do you think we should transition her to marine salt? We want her to have the longest and best life that she can't have...we are VERY fond of her! Thanks so much!

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  • Clarice Brough - 2014-03-20
    Sometimes a new enviroment can cause some stress, and that may be why its acting unhappy. But if its eating, that's a good sign. These fish do need a much more brackish water as they get older, with a salinity of 1.018-1.022 for an adult, this is almost a full saltwater environment. You can get a marine salt at a pet store, which may be helpful as they include trace elements that are essential for saltwater fish.
  • keyonne - 2014-03-26
    How tall is it?
  • Cindy Smith - 2014-05-18
    My green spotted puffer recently refused to eat for almost a week because I took out an aquarium decoration. I thought it would like more room to swim. Did you take out anything that was in the old tank? I put the decoration back and it started eating the next morning. Crazy fish. Its name is jaws because it ate the other fish.
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Mary - 2012-01-20
I have a 10 gallon tank along with 5 goldfish, I've got hiding spots and decor and fake plants. I was at Walmart and saw the litter spotted green puffer. The lady in the fish department gave me very little info on him. She said he eats just flakes, and use the aquarium salt. I bought him and the Jungle aquarium salt. Thankfully I still have a can of blood worms to hold him over besides the flakes until I go buy some other foods/snails for him. Little did I know what I was getting into. What kind of snails would I buy to feed him? I'm going to go buy some real plants for him to nibble on too. Do you think my little guy will survive in my tank?

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  • Editor's Note - 2012-01-20
    Spotted Puffers (Tetraodon nigroviridis) from Walmart are typically brackish water and will not survive, sadly in your tank. Puffers are referred to as 'aqua dogs' due to their personality, and the fact that they chew on whatever they can. Keep your wires out of reach. They will grow up to 5' and they are semi-aggressive. They really need their own tank and brackish water is not too hard to keep, sort of between salt and fresh. As little juveniles, like many fish, they are found in fresh water, then migrate to estuaries, or brackish water. If it is still young enough to deal with the fresh water, it will go after your goldfish.

    I would suggest buying another tank for your puffer if you are in love with it, and look up a little more information and your puffer will reward you with years of companionship. They do need to be entertained too! If you don't want to do all of this, then I would say to return the puffer to the store.

    If you want a TRUE FRESHWATER puffer, they are out there, just do the research before buying, and even then, do not put in with goldfish. Hope that helps and have fun with your spotted aqua dog!
  • Mary - 2012-01-20
    They are not gold fish but *GLOfish* their little neon tetra sort of fish and I've been keeping a eye on them and they seem to be getting along. I do plan on getting him a 20gal tank tomorrow just for him. He is quite adorable and I do want to keep him, Hoping he lives and heals because his fins are severely chewed up. I read they are omnivorious and need alot of meat like live crustaceans and freezed bloodworms or shrimp and snails to keep there teeth in check. He's only a inch big right now, would anyone recommend what to feed him till he gets bigger?
  • Jay - 2012-01-26
    Mary, those glow fish will be a meal soon. The amazon puffer is a brackish water fish when young then requires full marine conditions when fully grown. Despite what you read online most puffers are salt water fish. In the long run your glow fish will be eaten or killed and the puffer will die from living in the wrong environment. This is what happens when you buy fish from the know nothings at walmart.
  • Scott Emberly - 2012-01-31
    Hey I just did a bit of homework after purchasing probably the same freshwater puffer. I already have salt as well as brakish water but they need snails clams and other hard shelled live food to trim there teeth or they will grow to long to eat an die or if you are brave enough you might have to trim the teeth they also like brine shrimp as a treat as well as frozen blood worms
  • kyle - 2014-03-08
    Please help I just got 2.
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Mike Thornton - 2014-01-20
I just got 2 puffer fish. Put them in my 40 gallon tank with a cichlid. 5 hours later, the cichlid died. Is this due to the puffers poison?

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  • Jasmine Brough Hinesley - 2014-01-20
    The puffers do not excrete poison into the water, there is only poison present in their bodies which can kill other fish if they try to eat them. How long have you had your cichlid and was he much larger than your new puffers? Puffers are known to be somewhat aggressive and will go after fish who are smaller than themselves, so it is possible he was attacked and killed.
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