Looking for some help n

[rajeee]

Hey! I'm new to this forum. Been in the hobby for just over a year now. I have a 75 gallon reef tank and a 15 gallon QT tank.

Current issue - I have a Ricordia, a frogspawn coral frag, a few torches and a zoo frag. In the past everything would be open consistently when my 2 AI prime lights would be on. As of late, they all open and close quite frequently. Not sure why. I currently have a max spect grey 130 running at about 40% on alternate every 15 seconds or so. My current parameters are ammonia, nitrate, and nitrite are 0.00. My calcium is 495, alkalinity is 10.8DKH. magnesium is 1400ppm, ph is 8.3 and my salinity is 10255.

I currently only have 2 clowns and inverts in the tank. Tank is set up with a Hydor canister filter.

Any help would be great!

 

[Reef Frog]

I would consider the alkalinity & calcium rather high. I'm a fan of more like 8 dkh & 420 calcium. But that is a personal preference & there is no one "right" level. And your levels aren't crazy high either. Can't say for sure its the cause of the polyp closing you observed either. It might be nothing to worry about. Sometimes corals just retract for a little while fir no obvious reason to us humans.

But with high alkalinity and high lighting intensity, other issues sometimes occur like bleaching and color loss. Just a thought.

 

[Coralmassa]

I noticed my rainbow trachy loves higher alk levels. Not spreads way out. When alk is less than 9 it shrinks way up. I also run primes as well. Tip if u haven't noticed, the uv led is super powerful and I've not been able to turn it past 35 without bleaching. Whites peak at 55, with blues at 70. Red and green at 5, violet at 40. My frogspawn, hammer, Davis and chalices seem to love it

 

[rajeee]

Thank you guys for your help!!!! I will monitor for next couple days and play with the flow.