what fish could i have in a 10g?

[nYgel]

you'd need a chiller for a catalina, and those are generally pretty consistent. so i don't think it'd fluctuate

[daFrimpster]

I have a 6 line wrasse in my 10g. I wouldn't want anymore bio-load than that. I initially had a small GSM clown and a chalk bass in there. I moved them to my 65g and got the 6 line. The tank is a lot easier to keep stable and happy now.