Millie tips bleaching

[BlueTang<3]

Could it be bleaching from the lights ? Are you running carbon ?

[subman]

Originally Posted by BlueTang<3

Could it be bleaching from the lights ? Are you running carbon ?

Could be the lights I guess but they are all close to the bottom of my tank.
I was running carbon in a reactor but took it off line a couple days ago.

[gregzz4]

Some of my corals started bleaching as my water was like yours, too clean
They expelled their zoox, then the lights started burning them
I've since been overfeeding, and turned off half the lights, and some corals are starting to come back

[lastlight]

what intensity are you running your mitras at?

[Aquattro]

If it were lighting, I would expect the entire colony to bleach, not just tips.

[Proteus]

Have you tested k. It should be around 380. A overdose can look like alk burn on tips

[windcoast reefs]

Originally Posted by Titus99

Have you tested k. It should be around 380. A overdose can look like alk burn on tips

Nevermind just read you alk levels! I've never heard of potassium burns before. Might be worth a try to test for it

[subman]

The lights peak at about 80% on eco mode.

[windcoast reefs]

Yeah I would think that the entire colony would go if it were lighting too. I've also had some sps with tips that look like there bleaching, then end up transitioning to a different color.
Or maybe it's an alk burn