So. Ive had my tank...... I dont know, two or three years now, and I always thought it was a 55g. As I was looking around the MFK forums, I found a thread on 40g breeder tanks. Turns out I actually have a 40g. Its dimensions are about 36x15x17. IDK why this upsets me since im saving money for a bigger tank anyway and 40g is plenty big enough for now. Just wanted to get this out of my system.