GHL Mitra Owners club

[Madmak]

Just FYI, the Mitras are not meant for mounting inside a canopy as per the manual, the main venting is on the top. You may have to be creative with a partial canopy or open top.

As far as the coverage goes, 36"x36" is likely possible but may require the fixture to be hung a bit higher than normal above the water. GHL suggests 10 cm. I have one hanging over half of a 72"L x 24"W x 26"T tank (waiting on the second one) and have experimented with different heights. At or below 10 cm the cone shape starts to be apparent, 15-20 cm is great for my 24" width, and I would bet 20-25 cm would cover your 36" width. PAR may drop a bit at the sand bed but your tank is not that deep and you can always adjust the intensity. 100% will still be more than enough IMO.

I REALLY like the Mitras for spectrum control, spread, and power; the shimmer is excellent and no disco; very good build quality and a decent user GUI too.

I'm comparing the Mitras to MH, PC, T5, and all possible combinations of these in 2 separate fixtures that I have been using above the same tank. They seem to provide more of an "alive" look than anything else I have personally seen.

Profilux isn't needed but can be used. The USB connection and the free software is exactly the same as the Profilux interface, just without the other controls.