....!! What is this

[dynamictank]

I'm getting alot of polyp loss on my montipora and acan something is wrong! I've been having some king of algae brown on Sand may be dionoflagellantes , diatoms idk but I changed my filters on my rodi n the membrane. Thats when it got worse and I did a water change n the corals don't like it, some... I also changed lights from 10k to 20k this week it's been going on for two maybe three weeks

 

[ZANYMASTER]

Dinoflagettes look like pretty much like snot with bubbles. Tested for po4's?

 

[tosiek]

What are your parameters? Cal, Alk, PH, Mag, Po4, No3, Salinity, ....