Just to add to what's said, you need more water in your sump for the skimmer to work better. Second, you don't want to stir too much junk up at once, but at the same time you need to get after it. Move stuff around to clean. Do some big water changes, even a few days apart. Let your salt mix for a few days before doing the big water changes too, no matter the brand. Big water changes are caustic, even if it mixes clear in 5 minutes. Small water changes, no big deal, big water changes this is important. Personally I'd get a bigger sump. You need a little more room for a fuge section, and you won't be able to get anything more in that thing. Fuges aren't that expensive. I've built mine myself. If you are carrying water from the fish store, that sucks. Depending on your input tds you could get a decent ro/di unit new with filters for $180 bucks. The incoming water from where ever you are getting it might be contaminated too. Test the new water just to see. If your new water contains N and P water changes won't get you anywhere.
Probably the best investments I've made have been in home RO units, and oversized fuges plumbed to the basement. With a big enough fuge you can pretty much stock whatever you want. Referring to your future build.
Probably the best investments I've made have been in home RO units, and oversized fuges plumbed to the basement. With a big enough fuge you can pretty much stock whatever you want. Referring to your future build.