Currently only in the planning stage. Going to be building a 30x30x16 frag grow out tank. It’ll be BB and hooked up to my current system. Going to have a DIY overflow box in the middle and two returns (one in each corner). I’m not noting the returns as flow in the tank as they’ll likely be heavy on the surface for gas exchange. I’ll probably be using a viparspectra at first until I can save up for nicer lights. I’ll have steps of egg crate. So probably three levels (1 for low light, 1 for mid light, and 1 for high light) what lights will be best to achieve good growth for a mixed grow out tank? What I’m more worried about is flow, I’m horrible at achieving good flow. I am going to go with jebao, I’ve had great experiences with them in the past and they’re cheap. I was thinking about gyres but I’ve heard they’re a lot of maintenance and I feel like it might be too much flow for euphylia and shrooms and such. I was thinking possibly 2 slw-30s pointing each other between the mid and high level eggrate and possibly a jebao SOW-3 to provide flow that might be lacking at the low level. Any help on how to achieve proper flow and future light upgrade will be greatly appreciated!