I have them in a 12 gallon nano cube DX. 48 watts of 6700k coralife bulbs. sometimes I use carbon to filter but mostly I rely on the natural filtration of the nano cube. Mostly the water stays at room temperature for my house and thats at about 78-80 degrees. I don't use a heater because I live in FLA so the weather will never spike and kill my fish. I used to have a pleco but the fish out lived him. I'd guess that they are around 1 year old. I'll post then and now photos when I get a chance.
hard to say really. I a mostly not home from 8-6. I will say they are friendly when you are around the tank. Mine get very spooked when I get close though. Basically a finger to the tank will send it off. Mine love chillin in moss or in my java ferns. Ive heard you can put them with fish that are larger and that arent aggressive. I want to put some kuhlie loaches in there. I am positive they will eat neons. That took like a day and a half though. I wonder if they can be put in warmer water. I have a 29 gallon that I want to set up for these guys cause they are out growing the 12 gallon.