Anans shrinking fast

Flounder's Reef · Feb 16, 2026

I have an acan garden and I haven't added any corals in 6 weeks acans 6 months ago. All of sudden there disappearing anyone havecany experience with this or suggestions.

Alk-8.72
Cal-446
Mag-1374
Salt-1.026
Phosphate-.09
Nitrate-12.7

Shirak · Feb 17, 2026

If it's sudden and nothing changed recently then I would lean towards pathogen. LPS are prone to bacterial infection. I would do a full tank antibiotic treatment. I would also double check and make sure no alk spikes or nutrient bottom out etc..

StartingATank · Feb 17, 2026

Has any fish been nipping at them? Any Inverts?

Tahoe61 · Feb 17, 2026

Are near by corals stinging the Micromussa at night?
What fish types do you have?
Is the SG accurate?

Flounder's Reef · Feb 18, 2026

Thats the first thing I check was Salinity I even recalibrated my hanna probe . 90 percent of the acans have nothing around them but acans. The ones that are in the most distresse have nothing around them. Only one tang and all reef safe wrasses. O through a bad of carbon in Monday night all but 2 looked better yesterday afternoon