So all of us nano tank owner always have the same issue. Finding equipment the right size. Everything is too powerful, large or expensive because it's neither.
Well one thing I was having issues with with my nano reef was getting a powerhead for water circulation.
I DIY'd this together pretty quick and not only is it a powerhead it's also a bit of a chemical/mechanic phosphate remover by using chemical pellets and filter material.
If anyone is interested in this design just let me know. Prob cost 20$ in parts to start.