As some of you may have read before, I want to set up a nano tank for my dad for fathers day. I was wondering, what fish are suitable for a 3-5gallon nano tank? I've heard watchmen gobies are fine, anything else?
Almost none. 3-5 gallons is truly insufficient volume for fish in a nano tank. Please read the FAQ's. You could set up an invert tank with shrimp. If you must, a neon goby. SH