multiple corals are Apparently bleaching.

[TbSaysNo]

I have 9 corals (2 dupes). My mushrooms, candy coral, stylophora, and another coral i dont know What is (but looks like a stylophora even though it is not) is all doing fine, but my montipora plate has a Big spot Where it is White, my newly added montipora Also has a White spot now, and it has not had Any colors except for purple poylps. I Also have a rainbow chalice which has a White spot. Here is some pictures :

the only parameter swing i know is from 25 celcius to 26.7 and then Down to 26.2 and now it stays there. My nitrate and phosphate is 0 which i cant get up. Magnesium and calcium is good, alkalinity dkh is 9.5. Coraline is Also doing fine it looks like.

 

[Tuan’s Reef]

your ALK is too high due to low nutrients. Alk burn. increase your nutrients , reduce your alk.

 

[Tuan’s Reef]

if given the right conditions , they will recover.

I received an Acro that was completely bleached due to a temp swing during shipping. In 3 weeks it has recovered. colors are returning.


here's what it looked like when i received it.

Here it is this morning before the lights are on.