im setting uop an oceanic 37 gallon w/shrooms, yuma, a brain, frogspawn and 2 sps which i keep near the top of the tank for extra light. i will be moving my marine betta into it and have a choice: my remora c skimmer of a hob refugium 13 long by 4 wide by 12 deep.................if you could add one or the other, what would u choose and why