Folks, if you've recently upgraded or renewed your annual club membership but it's still not active, please reach out to the BOD or a moderator. The PayPal system has a slight bug which it doesn't allow it to activate the account on it's own.
My friend is a metal fabricator he builds race car chassis, roll cages any kind of metal fabrication he can build a stand. But he's located in Jackson nj
20 ppm nitrates is fine your phosphates might be high that might explain why you're having problems with some of your coral. I would try some phosguard in a bag in your hob fuge, it doesn't need to tumble like gfo does. If your phosphates come out high on your icp test.
I had a Aquatic Life 115 Mini Internal skimmer and it worked good did the air line mod. But I'm with sunny a skimmer not going to do much for you. A water change will probably remove more nutrients than the small skimmer will. What are your nitrates and phosphates.