LPS issues
 

My LPS are suffering.
It started with the tissue on my frogspawn creeping up in little strips.

Now the polyps on my bright green candy-cane has started to recede.

What is going on?

What parameter do you guys want?

I find that with euphyllia like frogspawn the usual culprit is too much flow and/or something picking at it rather than parameters. Observe things at night - especially cleaner shrimp.

what are ur Water parameters ?
PH
Calcium
Nitrates
Ammonia
all the goodies...
those things are pretty bullet proof

Really?? what do cleaners do? eat them? I have one in my SPS tank with a cleaner.

pH very low...how can I raise it?

ph buffer..... the powder stuff.... raise it slowly ... check ur hardness too that also plays a big part

pic

once something like that happens... its almost to late... but u can still try

Looks nibbled on.

definitely looks like an lps eater has been at it...
IF your params are all normal, i would look at the affected corals at night time to see if anything is eating it.