Depending on the species it'll will prob out grow the 8g. However I disagree with the 8g is too small for anything. I have a 5g desktop tank that is going to be a reef setup and I have fish and shrimp in it. There is a guy on here with a 2g pico reef. You'd be surprised what you can keep in a salt tankYounglin;5122952; said:Glad to see you did the right thing. Though I still say 8G is to small. For pretty much anything really. My bettas tank is bigger than that.