It seems to me every 2-4 weeks I have some new fish, but thats just me perfecting my stocklist as my tank comes to life. I mull over my ideas see what I like, see whats new in stock and so on. Im at the point in my stocking where im just waiting for a specific few fish to show up so I can finish. All I have left is somewhat rare fish that come in on occassion. I mean Im waiting on a farlowella twig catfish, espei rasaboras, gold rams, and the next discus order lol.