Emra!
I am by no means an expert of even an advanced SPS keeper but I think that there is something going on in your tank that needs a more advanced approach. It looks like Bubble Algae, Cyano and others have taken over your system.
What are your test results showing???
Are you skimming?
Lighting age?
Filtration?
Parameters are great, phosphates almost 0, nitrates, nitrites, ammonia 0, need new tests for other params (just noticed they're expired)
Skimming with a Tunze 9005, just switched to 2 250w xm20000k and 2 t5 actinics so new bulbs maybe 2 months, have a sump/ fuge/ deep sandbed, running GFO and carbon filtration.
The bubbles started when I added 2 HUGE pieces of DIY from a store and didn't rinse them properly enough. It took over those rocks and then spread. Emerald crabs kept dying even though params were good and wide variation of acclimation. The LFS switched to a new supplier and the last 4 that I put in have been there 3 months and actually making a dent in it.
Only other thing in there is cyano.
I did a 30gal wc, changed the gfo and carbon media, cleaned pumps and skimmer and (since I'm a tad sick of this) I scrapped the heck out of everything with bubble and cyano on it before doing the water change. I know, I know bursting the bubbles could make it worse... But if pratically every surface has it and it's choking things I'm to the point I'll take the chance
