Animal Stories - Silver Arowana

Animal-World Information about: Silver Arowana

The Arowana is related to early primitive fishes and is sometimes called the "Bony-tongued Fish"!
Latest Animal Stories
Adam - 2012-10-30
If I put an arowana in a 50 gallon tank will its growth slow down to livein a smaller environment?

Click For Replies (1)
  • Jeremy Roche - 2012-10-30
    Definately not.  These fish will quickly out grow the tank and such a small tank would add a lot of stress on this fish.  These are long fish and need a very long and wide tank.  Depth is not as important.
Ajeesh - 2011-12-03
I have a silver arona 1 feet long which is very active and eats live food and other sea foods, which is very aggresive and will jump for food.

Click For Replies (1)
  • Alex Burleson - 2011-12-04
    That's exciting! What size aquarium do you have him in?
Marlon Pereira - 2012-05-17
Hi I have a three 10" oscars in a large 7'L x 2.5' h X 2'd aquarium can I introduce my 6inch silver arowana into this tank . Its currently being held in a 3' X 2.5' X 18" quarantine aquarium. If yes for the transfer should i net it or bag it?

Click For Replies (1)
  • Jeremy Roche - 2012-05-18
    It will be ok till it out grows the oscars. I would use a bucket to transfer.
john - 2011-11-21
I probably sound like an idiot for asking this but why are arowanas so expensive? Can't someone just seletively breed them so there could be a 'dwarf' arowana that can go in a 20 or 30 gallon tank?

Click For Replies (1)
  • Charlie Roche - 2011-11-21
    No question is ever a dumb question. I thought it was a pretty good question. These guys are large. Normally in breeding when breeders want to 'miniaturize' the breed (ie toy poodle), they breed together the smallest of the pups together. Eventually you have a smaller breed. I really have no idea if this can be done with fish or how it could be done. A particular type of fish (ie molly) are all pretty much the same size.
tejaswa - 2011-10-06
hi,i m tejaswa frm india (m.p. bhopal) .i m having a short body flowerhorn about 1 n half inch,rapheal catfish of same size,2 oscars of 3 inch in 25 gallon tank.nd i m planing 2 keep a silwer arowana of about 5 ques is that r the tank size is suficent or i have 2 inlarge it to how much??????pleaseeee heeeellllp !!!!!!!!

Click For Replies (4)
  • Alex Burleson - 2011-10-06
    Hello, for a silver Arowana, the minimum aquarium size you must have is 125 gallons. Silver Arowanas, can grow to be two feet long! Additionally, Oscars and Flowerhorns reach sizes of almost a foot in length! Rapheal catfish only grow seven inches, and would be too small to place in an aquarium with an Arowana. For a 25 gallon aquarium, I recommend a fish such as tetras, barbs, and danios! I hope that helps.
  • tejaswa - 2011-10-07
    I' m having 90 gallon tank,will it work???????

  • Josh - 2012-03-01
    The fish are OK sizes now but they will get a lot bigger in the long run. The silver arowana will 24 - 30 inches and the oscars will grow to be 12 - 16 inches and grow about an inch per month. 120 minimum but a 200 would be the smallest I would go.
  • Jeremy Roche - 2012-03-02
    Hello tejaswa. To start off. Not only is the tank too small; the Arowana at 5 inches will make a meal of the Flowerhorn. Arowana grow big and FAST and eat used about anything that will fit in their mouth. I would recommend a 150. The 2 oscars alone will quickly outgrow the 25 galoon tank. Good luck and I hope that helps.
tejaswa - 2011-10-08
What can we do 2 prevent drop eye in our arowana????????

Click For Replies (1)
  • Alex Burleson - 2011-10-09
    You can prevent drop eye by performing weekly 25% water changes. Given no other fish in your aquarium has this disease. If other fish in your aquarium have this disease, then it is advisable to treat the disease accordingly, in addition move your sick fish to another aquarium.
karthikesan - 2010-10-20
My silver arowana 3 month aged lost a anal fins. Is it re-growth able? Any other problem will happen for this loss?

Click For Replies (1)
  • josue - 2011-07-29
    Feed it well and the fin will grow back. If you have other fish, check there temperment toward the arow.
AjinkyaKulkarni - 2011-02-08
What is the minimum tank size required for two silver arowanas?

Click For Replies (1)
  • josue - 2011-07-29
    Arows can get very big and it all depends on how big your arowana is. I have seen an 7 inch. arow in a 10 gal. with no other fish and only gravel, then latter on it died of stress. I think it was because the tank was 10 gal.
    Any way it depends on how big the arow is. p.s. it is not very smart to keep 2 different arow types.
jayzak - 2011-06-20
For all the NOOBS out there(like me), if you put an arowana in a small tank (below 75) DO COVER THE TANK AT ALL COST because they love to jump with precision. i have 2, one is 3-4 inch and the other one is 5-6 inch. I have saved them 5 TIMES already, as in pick them up on the floor and put them back in the tank. the smaller one 4 times and the bigger one once, dont know its me lucky or they are but cover it up ASAP and cover it tight, my tank have only a gap of 2cm wide and 10cm length between the filter n the center bar but somehow they still jump out of that little hole... amazing.

Scott - 2009-06-01
I have one 12" silver arowana, two 8.5" black ghost knifes, one 4" gold nugget pleco, one 13" rope fish, one 5" tiger shovelnose x redtail catfish hybrid (which will be in a 6x8ft indoor pond soon). All in a 200 gallon tank 72"x24"x24" with .5" glass top 5/8", so it is 200 not 180 gallons. This is a minimum for one aro. The tank needs to be atleast as wide as the fish is long and two or three times the fishes length. Silver aro's top out at three feet in most tanks, so the bigger the better. They also need a 75% water change atleast once a week to mantain the water quality they need to live. That makes this type of fish not for a novice, but a fantastic fish if you can house and feed it! I bought my aro at 3" and in two months it was 1 foot long and still not slowing. They are supposed to start to slow in the one to two foot range I've heard. Best of luck.

Click For Replies (1)
  • Jan Wong - 2011-01-31
    My Silver Arowana is about 20" long and approx. 4 yrs. old. I didn't realize that my tank was too small. I am debating whether I want to care for it anymore now that my kids are away for school. It's either a larger tank or to give him up. Any suggestions. I am also concerned because I was told that they die many times if they are transported at an older age.