
same reason i wanted one! then i found out what they are actually for.
really you have three options. do you want it for pod production, do you want it for macroalgaes for nutrient export, or do you want it for both.
imo 5 gallon will work. i see the hang on type fuges, and i belive most of them are 10 gallon and smaller. heck, i;ve seen someones tank somewhere that used an old whisper hang on filter, as a fuge
