Piranhas Forum banner
1 - 18 of 18 Posts

·
joey'd is da man
Joined
·
14,077 Posts
red bellys get anywhere between 8" - 14" and you will need a bigger tank than a 30 gallon, but not yet.
I is reccomended to have 20 gallons per fish.

P.S.be carefull because some people might mistake you for PIRANHA KING - wes!
 

·
joey'd is da man
Joined
·
14,077 Posts
they will grow to about 5-6" in 1 year, then they slow down to about 1" per year, you will need to move them when they look squashed!
 

·
Registered
Joined
·
27,223 Posts
I dont believe in the 20 gallon per fish rule. I had 5-6 red bellies in a 55g and they seemed just fine....maybe, as the video shows, their aggression level was a tad bit high. I would invest today and get at least a 55g though. 30g is way to small for piranhas to really enjoy. You might as well spend the money now and invest once in the equipment instead of moving tanks.
 

·
Registered
Joined
·
698 Posts
I'm with Xenon. What proof is there that 20 g per fish will doing anything? That is just speculation passed on from one p guy to another without any real study done on it. The more room your fish has with water changes will the fish grow. Add proper diet and no over feeding you fish will grow.

Water changes simulate the closest we can to a river or lake situation where water constantly changes washing away parasites and diseases and hormones that prevent fishes from growing. Nature has its tricks too you know
Tell you what, they did a study like this on Peacock Bass. F&W released them hoping the would grow to the huge sizes found in there native habitat. Guess what happened? they never did because the conditions in those small areas prevented the fish from expanding its growth to its full size.
 

·
Registered
Joined
·
698 Posts
"how often should i do water changes and what's a good diet for growing them out they're in a 38 gallon high."

On average about 2 to 3 times a week (20-30%). More often if the intention to try and breed them (that is if you happen to have a pair wanting to mate). 38g isn't a very large tank and doubt you'll get them very large in that.

"why would i want to imitate some one who is lower. huh piranha queen."

:D Hell I can settle this diplomatically using the names you've chose :cool:



piraya king, implies he is limited to a single species = pygocentrus.

PIRANHA KING, implies he is king of all the piranhas since the name is common for ALL OF THEM.
:
:
 

·
Registered
Joined
·
1,772 Posts
If you want them to be happy get any tank that is 4ft long. they like to swim and swim fast. If you want them to grow really fast you would have to move them for tank to tank moving up in size as they grow, and depending on how much you feed them. I have always used brine shrip for smaller P's, the only reason I dont recamend it for larger one is because of the cost involved to feed them everyday.
 

·
joey'd is da man
Joined
·
14,077 Posts
[quote name='fishman2' date='Jan. 19 2003,9:41']I'm with Xenon. What proof is there that 20 g per fish will doing anything? That is just speculation passed on from one p guy to another without any real study done on it. The more room your fish has with water changes will the fish grow. Add proper diet and no over feeding you fish will grow.

it is a safe thing to say - 20 gallons per fish, it also makes people realise how much space these fish need.
no-body follows the rules excactly, but if you suggest for smaller tanks than this or more fish, people would ignore you still and have real overcrowding problems!
 
1 - 18 of 18 Posts
Top