Need help

[Marco V]

Came home today to find my green and two frags of my red montipora bleached . Last night they seem fine just tested the normal stuff and got 0's on trite,ammonia and trates were at 10 . It's a mixed reef with softies as well as a couple of SPS corals also. I've also gotten a diatom bloom with red slime .

 

[Phranque]

Start doing a few back-to-back water changes. Even though montis are among the hardier of the SPS, nitrates of 10 is way too high. Water changes will help with the cyano (red slime) algae as well. Also, take a good look at your flow.... red cyano tends to creep up where you have low flow areas & nutrients collect.