Quote Originally Posted by Europhyllia View Post
I invite all you old schoolers to come scrape the coralline on my LED lit tank. Be my guest. I HATE it and it grows so fast you can watch it grow.
I knew you'd have somthing to say about this, Mrs. LED queen.

Quote Originally Posted by brandon429 View Post
coralline is the important alkalinity meter for the untested/dosed tank...when it begins to whiten thats a signal to up the dose slightly for another several months, to keep up with calcification in the bowl.
Thanks for posting brandon429. Very cool.

So, if you're seeing coralline algae lighten, you say to up your alk dosing. Does this apply to kalkwasser as well or just specifically alk levels? I don't test much either, and never knew to watch for this symptom.