Large colonies died over night abhh

[daniella3d]

How high do you keep your alkalinity? High alkalinity and low level of nitrates and phosphates can cause this.

It is a risk to keep alkalinity high. What about copper? have you tested for this? could be in the fish food?

[Snaz]

Every spring I notice an increase in posts about SPS death. I suspect pollen.

[subman]

Originally Posted by Snaz

...... I suspect pollen.

I thought it was bunnies.

(sorry to joke it totally sucks what happened)