White tips on SPS

[Llorgon]

Originally Posted by Frogger

If you are growing any scleractinian corals (stoney corals), snails, clams, coraline algae, etc you need to be adding a balanced calcium and alkalinity supplement.

The easiest way is a balanced calcium chloride, sodium bicarbonate/carbonate additive. Work slowly to find a balance ideally between 7 and 10 dkh and 400 to 440ppm calcium.

Also having truly no phosphates can be a problem that will cause the tips to go white and dieback. Reduce GFO if you are using it.

Originally Posted by Frogger

Adding just baking soda could create an imbalance in calcium. Your inhabitants that are lowering the alkalinity are lowering your calcium at a balanced amount.

Ok good to know. I didn't think I had enough in the tank to need supplements.

I have no GFO running. I do have carbon though. Also have a skimmer. Should I shut that off for awhile?