i can usually go a month or two, but theres always fish on my wish list. working at a pet store and being the one in charge of ordering fish makes it even more difficult
Two months ago I promised my fiance I wouldn't buy any fish till we got married. So I found a free one to add to my collections...... lol. Couldn't hold out three months. I'm suprised I made it almost two! Bahahahaha.....
Three months I think was the longest. Back when I had like 10 tanks I got new fish every couple days, now only pick up new stuff every few weeks... hehe