Let me apologize up front for the over explanation of my concern. I have a 65 DT that’s been up for about 9 months. 2 months ago I had an issue keeping my nitrates and phosphates under control. My filtration at that time was a Aquaclear 110 hob , reef octopus hob skimmer, and a fluval 407 canister. Roughly a month ago I decided to make a diy sump to add some extra specific filtration and to “clean up the look in the DT”. So I made that happen and slightly modified the reef octo in order to have it in the sump so now my DT looks a lot cleaner. My issue now is that I have this oily film at the surface of the display tank that doesn’t go away even with the overflow box skimming the water surface. The tank is only a 65 and I already have my return pump maxed out for the most flow and I really don’t wanna add any more flow because I think it maybe almost to much already for my corals. When I had the reef octo on the DT I never had the film because one of the features of the reef octo is a surface skimmer at the intake and it works. My overall question is this.... do I leave everything alone ? I know the film stops some O2 exchange but I do have the sump with no film Do I put the skimmer back up top and mess with the clean look that I want ? Or do I try to find another solution?
Thanks fir any thoughts
Thanks fir any thoughts