[ChuckG]

Originally Posted by Patrick™

Quit using all additives!

I totally agree. What are all the additives for? "A few polyps and a mushroom"

You aren't even anywhere near where you "might" have to use any kind of supplement. Normal water changes with a quality salt should give all of your inhabitants everything they need nutritionally.

How often do you clean that canister?

I also believe there is some validity in what OSB is saying about your fuge lighting and you quessed it correctly. Give your macro what it needs to grow strong and it won't leave any nitrates for the nuisance algae to grow elsewhere.