SPS Tank / Photon 48 questions

[pdiehm]

Currently running a Photon 48 12" off water surface (sitting on top of my canopy).

My schedule is a 12 hour schedule that maxes out blues, and the whites only at 1%. Has a purple look to it, that for me is aesthetically pleasing. I've found if I get to 10% whites, I start getting burnt tips after a day or 2...and these corals are sitting about 36" under the light on the sandbed.

Anyone running a photon 48 on a similar tank (60x18x26) that can share their lighting schedule?

 

[Hentz]

Do you think you're mistaking burnt tips for growth tips? How's polyp extension after you start seeing white tips?

I ran my Photon 24's, 13" off the water, with 80% Blue, 40% White and my Acropora grew like weeds.

What's your parameters at?

 

[pdiehm]

I dunno. My one Stylophora has a white tip and all polyps are retracted onZ. Birdsnest is the same.

Parameters are really good. 10 weeks or so into zeovit.

ph: 8.2
Alk: 8.3
Temp. 77.9
Salinity: 1.025
NO3, PO4: 0
CA: 485
Mg: 1400

 

[pdiehm]

I actually just changed to 65% blues until I figure out what I need to run this light at

 

[Hentz]

Ah I run ZEOvit myself.

Your Alk is high, bring it down to 7.0-7.5
Calcium is way high, 410-420 is what you want.
Also your Mag needs to come down to about 1300.

I'd also test your Potassium.

How often do you do water changes and how much?

 

[pdiehm]

I am using Red Sea blue bucket. Was doing 10% weekly (12 gallon). Changed to 5% since I am so lightly stocked. I cannot get my calcium down and Alk has been staying 8.1-8.4 for about 30 days or so.

I am tempted to not do any changes til the calcium and alkalinity are used up naturally then start with the water changes.

Potassium? I have the kit, it's over 400.

 

[Hentz]

I agree. Just let the calcium get down. It's way too high, as is your mag.

I think you're best bet would be to write on the ZEOvit forum and have G. Alexander give you advice. He's helped me through all my problems with ZEOvit

 

[pdiehm]

It's just them 2 corals. I also don't exactly know how to tune this light in. Will have to borrow a PAR meter to get some idea. Maybe I will get a Seneye. At least it has other uses if I need it.