HIYA!!! Well My dad picked up a really nice and big fish tank for me. It has a filter and everything. It has only 1 comet goldfish... Now I want more. I needed some opinions about PETCO's fish 1) What would be better, fancy fantail golfish or regular feeders(I will not feed my fish to anything) 2) Who/What lives longer in those 2 options 3) share your experience(optional). Thank you so much!