GHL Mitra Owners club

[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.

[BlueTang<3]

I also am having trouble keeping my Sps colourful, tested par and mine is really low yet I have to keep scolys and clams in the shade as they bleach if I don't. I was told that par meters are very accurate with led as they cannot read certain spectrums. I notice top down my colours are starting to come in but from the front and sides it's brown blobs.

[Rice Reef]

Try min the tooty fruity colours to 10% or less and run more cool white. This should help. I am running the 6100 and I have both blues, uv and cool white at 100% while others at 10% or less. I was running all the colours at 100% and all that got me was nuisance algae. I had reconfigured my lights in jan and saw nothing but improvements in coral colours. Since Jan I have also dropped the mitras down to 4 in above surface of the water.

[reeferfulton]

Originally Posted by Rice Reef

Try min the tooty fruity colours to 10% or less and run more cool white. This should help. I am running the 6100 and I have both blues, uv and cool white at 100% while others at 10% or less. I was running all the colours at 100% and all that got me was nuisance algae. I had reconfigured my lights in jan and saw nothing but improvements in coral colours. Since Jan I have also dropped the mitras down to 4 in above surface of the water.

he does have great color for sure .. I now run my lights under the water line .. -1 inch lol just kidding .. Are you really down to 4" lol wow .

[Rice Reef]

Originally Posted by reeferfulton

he does have great color for sure .. I now run my lights under the water line .. -1 inch lol just kidding .. Are you really down to 4" lol wow .

Well, u measured it for me!

[lastlight]

Everything in my tank other than the sps loves the mitras. I might be slowly colouring a few sps up but it has been extremely frustrating.

Blue, Royal Blue, HV - 100%
Cool White, Green - 35%
Red, Hyper Red - 5%
Neutral White, Yellow - 10%

Light is about 7" off the surface at 70% intensity. I had to turn it down a while ago after the tank reacted badly to more light.

[Skimmerking]

Ok I set up a program to run the lights and my scollies are dying, and im getting green aglase growing that i never had before and Red turf is coming back. My corals seems to be reaching for the light.
I'm hoping the channels are set right i have them set for 50% but is that right or does that stay at 100%. If I want to boost the LED i use the slider bar at the top..

WRT the hair algae and Red cynao Im running pellets and have ben since last oct and never had a issue. since i put in this 6200 from the 6100 its going weird .

[monza]

The splash guard/ shield or what ever you like to call it on my Mitras seems a bit 'fogged' right below the LED clusters, its not that bad but any suggestions how to clean it? I haven't tried anything yet and thought I'd ask first?

[Aqua-Digital]

Like all things they need a bit of a service from time to time, here is the maintenance guide

http://forum.aquariumcomputer.com/do...?do=file&id=78

You just need to clean the screen. two screws and out it comes that easy.

[Scythanith]

Now that I have a PAR meter I feel it's your lighting program that's hindering your PAR numbers, not the lights themselves. The lights are more than capable to produce 350+ PAR at that depth, but the white channels are required