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View Full Version : Black w/ Red Bellied?



porsche911
12-21-2007, 08:01 PM
Not sure ... but thinking about getting a few RB's and a couple of Black P's (which don't seem to be black at all)... I have heard/read that Black P's are the most aggressive...will they eat up the RB's?

I know I'm asking for a personal judgement question... but which ones are better if I have to choose?

TowBoater
12-21-2007, 08:24 PM
What size is the tank and what filtration?

porsche911
12-21-2007, 08:55 PM
i'll be having a coupl of 50 gal tanks on a sump system...
option two is using my 125 gal show tank... not sure ...

TowBoater
12-21-2007, 09:15 PM
You need several hundred gallons for a school of them. If you just have like 2 then they would be fine in the 125g.

piranha_brad
12-27-2007, 06:36 AM
General rule is 20 gallons per piranha. You can NOT put the black piranha in with the red's it will kill all of them, and u can only keep a single black in one tank (unless u have a HUGE tank...like at least 1000gallons). And two red's is also not a good idea, they will constantly fight..u need 1, 3, or more...

Demjor19
12-27-2007, 07:09 PM
this is a very big "no no" the blacks can not even be kept w/ other blacks. they will surely kill the redbellys and each other.

i personally favor the blacks. i have a 13" black that is awesome to watch. she can take down a 6" smelt in about 5-10 seconds.

also...the black piranha will not turn black until it nears adulthood. in their younger years they look similar to the redbellys. hope this helps a bit.