SBS shrinking and color fading.

[myidz]

Does anyone know why my SPS are getting thin and losing color?
please need help lol.

KH is in dkh on the chart.

 

[griss]

Water parameters all look good. What’s your temperature? How long have the corals been in your tank?

 

[Reefing102]

Just saw your other thread. Looks like bleaching. I agree with the above, what’s the temp and lighting schedule? For me, phosphate is a little low (but nothing that should cause this)

 

[myidz]

Hi thanks for your response.
Yemp25c
Coral being like this for 6 weeks
Lighting
Hydra64 x 2
70% on all channels. 8am to 8pm 70% on for 5 hrs
Other SPS corals are doing okay
Nitrates did reach up to 25 ppm brought it down to 15 PPM after water change yesterday.

 

[Reefing102]

Hmm everything seems in line. While the color isn’t there, you still seem to be getting decent color. Anyway to move it to a more shaded spot or lower in the tank to see if the color returns? Have you measured par yet? 70% seems high for all channels but I would have thought you’d see something sooner than 6 weeks.

 

[myidz]

I haven't checked the par because I don't have a par meter, but I'll reduce the light intensity and move the coral to a different place. See if that helps.
Thank you for your response

 

[Reefing102]

It could take a few weeks to see any solid results, just be aware

 

[myidz]

That's reefing for you. Patience is key. I'll keep you updated.

 

[griss]

Yep, I got a purple Stylo frag from a local reefer. He uses LED and I use MH. Frag almost completely bleached in my tank and took months to come back.

 

[myidz]

I put the flag in the corner. See if it recovers. Does anyone know what this is on my rocks? It's Not Coralline Algae?

 

[Reefing102]

Almost looks to be a diatoms type algae. Not too sure

 

[myidz]

Yeah I think it is