Who Gives A Fish Forums

I'm also considering my fans as a potential cause. I have them set to night mode and I think when they switch over, the change in pattern and power of the current might be upsetting my corals.

Not a stupid question at all, I'd actually appreciate any idea. Have you considered the possibility of temperature fluctuations? It might be worth checking if your tank's temperature is spiking around 6-8 pm, maybe the heater's kicking in during that time?


Temperature's always stable, 79-80 ...

I've got a mixed tank going on with Zhoas (green and brown), ricordias (6 of them), mushrooms (4), two different torches, one hammer head, acropora with montipora, and just added a RBTA. Every day when I get home from work, my hammer head, torches, and new RBTA are irritated and deflated, showing ...