Orange spots on previously live rock.

[NoohBee07]

Originally Posted by Trigger Man

That is a really nice color of coralline algae you have growing in.
For your hospital tank if you have cupramine in there ( I assume you are treating for something like ick, velvet, etc), then yes, if you remove water you will need to dose the recommended amount for the new water you put in. If you do not the cupramine will be diluted to a lower amount and become less effective. I use prime to lower my ammonia in my hospital tank when needed.

Thank you, trigger man! Is there only one variety of the "Prime" i should look for?

Yes i am treating early signs of ick. I got too excited to stock my tank so i had fatalities. Good thing those that died were not expensive livestock. But still sad. so i am saving the survivors.

By the way, what salinity should i keep my hospital tank on? Im reading that i should lower it, but i took the fishes out of my display tank. So right now my hospital tank has same salinity. Should i lower it like what some articles say?