That is incredible. Nice work. How much does it effect the flow in your fluval? I am asking because I have a 304 as well that is acting strictly as a surface skimmer and was considering making a reactor for it. I dont however, want to restrict the flow too much..
Ehfipimp #273 ( Eheim Classic: 2260, 2217, Eheim Ecco: 2236, 2232 ) Fluval FX5