Tank is about 6-7 months old had my first Diatom bloom 3-4 months in and it went away. Shortly afterwards water got super cloudy and GHA bloom came overnight. Added a UV filter to my sump and beat the GHA. Now I have Diatoms covering the whole substrate surface... when I first setup the tank I had just mixed marine salt with conditioned tap like an idiot.. I did a fairly aggressive water change with pre mixed saltwater at LFS and have been using that since then so any silicates should be gone I would assume. Any livestock I have is active and healthy. What should I do?
Here is tank info and parameters.
-30 gallon
-7Lbs of live rock
-1.5 inch of live sand substrate
-165W reef light that Is on for 11-12h
-1 powerhead
-Frag of Xenia that is growing like crazy
-Frag of GSP that is growing slowly
-Condy (I think) that is healthy and eating
-Mandarin Goby
-2 Percula Clowns
-1 Arrow Crab
-2 Trochus Snails
-1 Nassarius Snails
-2 large Nerite Snails
-79 Water temp
-phosphate barely detectable
-Nitrate 5
-Calcium 400
-PH 8.2
-KH 8
-Salinity 1.028
New Sump is a 10 gallon with baffles
-filter sock
-protein Skimmer
-media bags with ceramic rings
-activated carbon
-UV Sterilizer
Here is tank info and parameters.
-30 gallon
-7Lbs of live rock
-1.5 inch of live sand substrate
-165W reef light that Is on for 11-12h
-1 powerhead
-Frag of Xenia that is growing like crazy
-Frag of GSP that is growing slowly
-Condy (I think) that is healthy and eating
-Mandarin Goby
-2 Percula Clowns
-1 Arrow Crab
-2 Trochus Snails
-1 Nassarius Snails
-2 large Nerite Snails
-79 Water temp
-phosphate barely detectable
-Nitrate 5
-Calcium 400
-PH 8.2
-KH 8
-Salinity 1.028
New Sump is a 10 gallon with baffles
-filter sock
-protein Skimmer
-media bags with ceramic rings
-activated carbon
-UV Sterilizer