Wow! I've been absent for awhile. My health faultered which intern aided my tank to take a nose dive and decided that it liked to grow hair algae everywhere. I said goodbye to my corals as something destroyed each of them. I still haven't figured out what caused all of this. I slowed feeding down, I blocked all light sources, I checked params every two days and always showed good. I went to 50 gallon water changes every week, still nothing. I bought hordes and hordes of snails and hermit crabs. Something was killing off my snails. Almost all of them. I bought 4 sea hares and you could finally see the hair algae being eaten away. But then, all 4 sea hares died. Two were so far buried in the rocks I couldn't get to them. Bad choice, algae explosion! Then I ran across something from Marine Depot. Bio Digest. I purchased the BioClean it comes with the biodigest and bioptim. Went to dosing every week and the algae is almost gone. Wonderful stuff. BUT... that still doesn't tell me what caused my explosion in the first place nor and this is the worst one, does it tell me if I cleared out whatever caused it. I know with the sea hares dying and all those snails it didn't help, BUT what caused them to die in the first place. I'm back.. I hope.