Bleached Coraline Algae -A Sign Of......?

[MitchM]

With that many water changes, I would think that your Mg should be higher than that anyways.
Which salt are you using?

Mitch

[DiverDude]

Reef Crystals. I've been experimenting with how much of what to add to each 5 Gal bucket of water I make up. Right now, I'm adding 1 TSP Ca; 1TSP Mg and every other change, 1/2 TSP Sr.

I think I might double the Mg for a bit and see where it stabilizes.

[blacknife]

Just put the phosban in a nylon... err.. media bag in a high flow area, wont work as good as in the reactor but will still pull some out the pellets can get the rest, if they work as good as everyone says.