Whats happening to my acan?

[Christoball]

My acan was all puffy and fine up until a week ago. Now i notice the smaller polyp on the side has split, i also notice som pink’ish color around the base of the flesh. What is happening?

This is how it look last week. No changes in parameters.

 

[AZReef13]

Do you feed? how often? What are your water parameters? Dosing? tank size? To help you should post your numbers. This will help to understand your tank

Not sure about the pinkish, maybe coraline algae?

 

[Christoball]

Do you feed? how often? What are your water parameters? Dosing? tank size? To help you should post your numbers. This will help to understand your tank

Not sure about the pinkish, maybe coraline algae?

Tank is fairly new. Waterbox 45.2
I have only used grotech KH buffer once. As you can see on july 16, the dosing instructions on the box did not go as my planed - 1dkh rise. I feed, mysis and brine shrimp every other day aswell as the «shrimp juice» also reef roids every other week.

 

[roc1hmr]

Phosphates look a little low. IMO my acans do better in water with a little more phosphates.

 

[Christoball]

Phosphates look a little low. IMO my acans do better in water with a little more phosphates.

I also feed the tank pellets each day, any idea how to get it up? What would be a good number for phosfates?

 

[roc1hmr]

I hold mine around .02 ppm. I also ran into low phosphates problems. I would suggest feeding a little more to bring them up.