Want to Upgrade Flow in My JBJ 28 Gallon Cube

[jonboyb]

I have a JBJ Nano-Cube 28 with 150w Halide and 64w Actinics. Been up for 5 months or so. It has dual 266 pumps, but the tank is loaded with SPS's (although most are just small frags for now) and I want to upgrade my flow to make them happier. Anyone have suggestions? I was thinking of adding 1 or 2 Koralia Nanos or 1's, but I don't want to make a mistake. While it is really outside what I want to spend (like 10-fold) the VorTec MP-20 controllable looks really SWEET.