Need some help with browning out sps

[gregzz4]

I'm sure someone with lots more knowledge than me will chime in ...

I wouldn't blame your PO4 at this point
And the only time I've read about SPS problems with phosphates is when they are stripped from the system rapidly

Without knowing what lighting/params etc the LFS had them under/in it's hard to say

I'd say your readings are 'balanced' - you may see some improvement if they were all a touch higher, but don't mess with them yet
Either get your dosing where you want it now, or focus on the lights, but I'd suggest you don't try to do both at the same time

I think you are on the right track concerning the lighting and you should work on getting your params up 'just a bit' and leave the lights down @ 38% until you have the dosing under control
Then, after a couple weeks of watching what is going on, you could consider turning the lights up some more and watch closely what happens

[04V10]

I currently am not dosing, but am looking into it to bring some of those params up a tad.
Is anybody else running radions with some sps? If so, what do you have your program set up like? Just looking into what possible changes I can make to my programming if I get to that step.

[gregzz4]

OK, so I'd still say it's more your lights than your params

Keep the lights lower until the corals come back, then bump them every couple weeks, and watch for a week or 2 each time
Then bump some more and so on

But, I did say I hope someone else with more experience replies as browned corals can mean more than one thing

[Proteus]

what kelvin spec are you using on lights.
I run at 18000k with my radion at 30% about 10'' above water.

[04V10]

Originally Posted by Titus99

what kelvin spec are you using on lights.
I run at 18000k with my radion at 30% about 10'' above water.

I had adjusted the color all the way through my schedule. I will have to look at my program and see what closest it looks like.

[Aquattro]

Chemistry looks fine, but I doubt the NO3 is 0. Really tough to get no nitrate at all. I'd double check that on a different kit. Browned out is too much zooxanthellae in the coral tissue. Which means probably nutrients, coupled with maybe higher temp.
What is the temp?

[04V10]

I'm running my temp ~80o.

I agree with the nitrates. I'm using an API test kit for nitrate. However, i have been using Red Sea for Ca, PO4, Mg, and alk.
I can definitely turn down the temp a bit as my heater does turn on momentarily.

Do you guys think I should be feeding anything extra for the sps? All I feed right now is mysis, sparinly mind you, and I spot feed my LPS once a week with mysis.

[gregzz4]

Originally Posted by Aquattro

What is the temp? Also, how long is the light on?

Good points Brad

[gregzz4]

Originally Posted by Aquattro

Browned out is too much zooxanthellae in the coral tissue

Care to explain how this happens ?

I understand corals can excrete their zoox when under stress, but how do they end up with too much ?