cepon3;1760101; said:
Are you talking about for just a couple of months of are you talking for life? Remember that your talking about highly aggressive fish that get up to around 18 inches in the wild. They have serious dentition and will use it in territorial fighting.. i would say you could start with small specimens say from 1-2 inches ang get about 8 of them in there for about a month.. then youll have to start culling your stock.. with that beeing said get a 75 and keep the nicest as a single specimen for life..
that is one of the weirdest advice i've heard about rbp!
first, general rule for rbp is 20 gal per fish (adult), so you could fit 3 in your 55, but the problem with the standard 55 gal tank is the fact that it's not too wide... rbp are fast growers, but will NEVER go up to 18", that's ridiculous. expect 8 to 10 inches in a tank, and wild caughts never exceed 12-14 like said before. so your 12-14 inches wide tank will be a bit small within 2 years.
so yes, the best tank would be 75, since it's as long as a 55 (wont take much more space) but a bit deeper and higher.
you should not keep a single rbp. they are shoaling fish and will be much much more interesting to watch and less skittish in a shoal. you could put 3-4 for life in a 75.
and please, don't do as suggested above and start with 8 and only keep 1, strangest call ever... i'd say go with 4 in a 75 and if you lose one (canibalism) you'll still have a nice lil shoal. you couldnt put more than 3 in a 55 and if you lose one, 2 is not much... well, my opinion.
and yes it's better to introduce them all at the same time, but that's mainly when they get a bit older (like 6-7months old) young juvi don't already have that strong territorial behavior.