GHL Mitra Owners club - Page 2

Skimmerking · #1 10-15-2014, 02:01 PM

So what is a good K rating to run these lights at. I have the 6200

Scythanith · #2 10-15-2014, 04:01 PM

I don't have the 6200's but I run mine around 10-12K for 4 hours in the middle of the day and get 250-275 PAR at that ~8" below water surface. That's running at 75% brightness in high efficiency mode.

Scythanith · #3 03-11-2014, 04:33 PM

That's an extremely poor showing for the lights… ouch! With the amount you'd invested in them I feel for you!

Quote:

Originally Posted by xenon

Does anyone have success keeping SPS well coloured under their GHL 6200 Mitras?

I have been struggling with coloration ever since I set them up 5 months ago.

I finally got my hands on a PAR meter today and I think I found my issue. I am getting just under 200 PAR at 8" bellow the surface. We all know that is not enough intensity for SPS.

I am currently using the following settings:

100% High Output mode.

60% Blue
100% Royal Blue
100% Blue white
0% Cool White
30% Natural White
30% Sky White
50% Red
0% Green
100% UV

I can achieve more PAR from these lights but then the color temp looks too yellow. We decided to take them down. We will be experimenting with different types of metal halide fixtures for our SPS system.

lastlight · #4 03-11-2014, 05:00 PM

Quote:

Originally Posted by xenon

Does anyone have success keeping SPS well coloured under their GHL 6200 Mitras?

I have been struggling with coloration ever since I set them up 5 months ago.

I finally got my hands on a PAR meter today and I think I found my issue. I am getting just under 200 PAR at 8" bellow the surface. We all know that is not enough intensity for SPS.

I am currently using the following settings:

100% High Output mode.

60% Blue
100% Royal Blue
100% Blue white
0% Cool White
30% Natural White
30% Sky White
50% Red
0% Green
100% UV

I can achieve more PAR from these lights but then the color temp looks too yellow. We decided to take them down. We will be experimenting with different types of metal halide fixtures for our SPS system.

I was wondering why you don't use the cool white's and kill the natural whites if you want more par and less yellow?

kien · #5 03-11-2014, 07:12 PM

Quote:

Originally Posted by lastlight

I was wondering why you don't use the cool white's and kill the natural whites if you want more par and less yellow?

I was curious about the same thing.

Looks like the Mitras are back in the spotlight! Get it? spotlight ? Thank you, thank you, I'm here all week. Tip your waitress on the way out..