Soo im building a sump for either my 55 gal
or a 90 gal
Its my first time. the sump is going to be about 20 gallons. i think i have everything down but im having a hard time finding somewhat cheap and good quality protein skimmers. i hear a lot about ''reef octopus'' and this ''Warner marine skimmer'', well those are my choices anyways any suggestions?
also would i be able to use a hang on skimmer in the sump? are those lower quality ??
also could i get a little more info on how to "tune" it im not 100% sure what that means but i keep reading and hearing about it lol Thank youuu~