Aggreed. A few people I know have small spilos tanks that size, however I believe it to only be temporary. Spilos are very aggressive in school setting and once cramped the aggression level toward each other will be dramatically incerased. 3 1-2 inch spilos will out grow a 55, IMO, in less then 5 months perhaps less. Might even lose some fish before that time.Judazzz said:Spilo's aren't exactly fish that are famous for their sociable behaviour. I think buying more than one for a 50 gallon is asking for trouble
I think that a single spilo will do good in a 55. I am very pro under packing. I think giving fish more tank space promotes faster growth as well as full growth potential(or at least BETTER growth potettial). I have a 7 inch altuvei in a 65 by himself. Its nice to be able to see a fish "stretch its legs" (swim).