Most need really good lighting.....the Derasa can get away with T5's...I have one in the 29G
Maxima and crocea need high lighting
3" and above are supposed to be easier, and not need to be fed....that is why I got this one bigger. They need a high level of calcium (400+) or so....
I'm no expert...LOL....I had a teeny maxima once...didn't last 2 weeks
I still want a Maxima, but I will not buy one under 3" next time