Smooth skin acros bleaching???

vanguard · Nov 30, 2023

Alk 9.15 (stable)
CA 470
MG 1379
PH 8.2
Nitrates - 12.6
Phosphates - .07

Last night all my corals looked normal. This morning we woke up and the needle in a haystack ( https://www.queencitycorals.com/product/needle-in-a-haystack-acropora-wysiwyg-3/ ) was fully white and the red dragon seems to have bleached.

Yesterday we put an air stone by the return pump to blow microbubbles in an attempt to clean random detritus off the rocks. We also used small turkey basters to blow them clean.

Questions: Did we cause this with one of those actions? What would you do from here?

Charlie the Reefer · Nov 30, 2023

Did you look really closely for pests? Try a flashlight at night, or get really close somehow to see the surface of the acro. Some can be really small. Just an easy thing to suggest that can't hurt.

vanguard · Nov 30, 2023

Charlie the Reefer said:
Did you look really closely for pests? Try a flashlight at night, or get really close somehow to see the surface of the acro. Some can be really small. Just an easy thing to suggest that can't hurt.

We did look for pests with a magnifying glass but didn't see anything.

Dburr1014 · Nov 30, 2023

vanguard said:
Alk 9.15 (stable)
CA 470
MG 1379
PH 8.2
Nitrates - 12.6
Phosphates - .07

Last night all my corals looked normal. This morning we woke up and the needle in a haystack ( https://www.queencitycorals.com/product/needle-in-a-haystack-acropora-wysiwyg-3/ ) was fully white and the red dragon seems to have bleached.

Yesterday we put an air stone by the return pump to blow microbubbles in an attempt to clean random detritus off the rocks. We also used small turkey basters to blow them clean.

Questions: Did we cause this with one of those actions? What would you do from here?

Watch the areas for the next few days. If they spread, snip them off. If they don't spread, they may grow back.