euphylia upset

Parameters Ammonia-0ppm Nitrite-0ppm Nitrate-10ppm pH-8.0 Dkh-8.0 Calcium-450ppm Phosphate-(0-.25ppm) Specific gravity-1.026 Temp-80F I understand that my coral are hurting but I’m unsure why. I seem to have my parameters in check. I’m not chasing numbers just a weekly 10-20% water...

I am having huge problems in my tank as of recent and am trying to figure this out and rule it out as a problem. I have a Tunze 9001 in my Waterbox Cube 20. The only way to use this skimmer is to put the skimmer facing sideways and the magnet is being submerged in the water. I was wondering if...