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I've read a ton on ich and the effects on fish, treatments, etc... But in my reading, one thing was never fully clarified: can ich effect or attack inverts and live rock? I know copper treatments and salinity drops to rid ich can kill the inverts and rock, but if you leave a tank fish-less for...

I have some small sponges and tiny featherdusters developing in my live rock (thanking you all for ID'ing the sponges for me!) I've read the compatability guide on this site, and saw that eels are OK for reef systems but not OK for inverts. Would this stuff growing on my rocks be safe from an...

Looks like white cotton, but ony on one of my rocks (inside the thin red circle).

Is it safe to perform a 75% water change for an aquarium containing ONLY already cured live rock and sand? I ask because the current water is tap water, and I recently installed an RO/DI system. There is alot of brown algae on my glass, which doesn't scrape off easily so I was going to do a...

Thanks for the welcome! Now that I think about it, it's more like a brown slimey moss than a sponge. Unfortunately I don't have access to a camera at this moment to take a pic, but can try tonight. There is no heater in the tub, but the room is quite warm. I didn't put the rocks into the...

Hi there, I have some cured live rock I purchased from my LFS, and have had it sitting in a plastic tub with a powerhead for the past 4-5 days (to play it safe). I examined one of the pieces, and noticed a thin, brown spongy thing on the piece, which comes off after a light rub or scrape. The...