GHL Mitras Club

[Balelas]

Two mitras 6200hv on the way!.....but.....4 weeks for deliver....those will be 4 long weeks.....

[AQD_ottawa]

Wow delivery is slow in Europe, lots of stock here in USA.

[thelostrican]

Good to know I just bought 2 from reefbytes...

[AQD_ottawa]

They are being shipped from canada to the brand new warehouse in NY right now and will ship on from there to reefbytes, typically they would be on the way now but we are in the process of moving stock, this will speed up everything for the USA supply chain by nearly a week from now on.

[Balelas]

they are out of stock in Europe...maybe they have send them all to USA...lol
all most supliers and LFS say that they ill be back in stock on 20 of june.

[AQD_ottawa]

Thanks Aaron for this review

Please see here

Ok, so I’ve been running this beast of a light for almost a month now. It’s time to give my thoughts on it, for those who are interested in the lighting unit. I’ve been posting bits and pieces as I’ve gone along but I'll bring it all together into one place.

First Impressions of the light unit were very good, well crafted, sleek and it looked the business. Build quality is top notch, same as with any other GHL product I own. The sunglasses you get with them are a nice touch; I may even use them this summer.

When I turned them on, the first thing that jumped out at me was the spread from the unit; I had dark areas from the previous lighting being used but not anymore. The unit is hung at exactly the same height as it’s at the very top of my hanging bracket. With the spread being so good, I reckon one unit could easily do 3 foot long and 2 foot wide. I run mine currently at 70% peak 10 inches from the waters surface. So raising them further and increasing the intensity would improve the spread no doubt.

The initial set up for me had some issues, this was surrounding using VMware as a virtual machine, I couldn’t get drivers to install and I managed to resolve it using Bootcamp in the end. Programming the lights was pretty simple, having used the illumination program in the Profilux before there are some similarities in the software. This made life easier for me. Something I really like is when you have created a custom Kelvin, this can be saved and applied all across the lighting run quickly and easily. The colour rendition is fantastic, lots of flexibility to cater for different tastes, the hyper violet LED’s make the colours of the corals really pop. The software makes it very easy to make tweaks to your lighting schedule, I haven't explored all features of the software yet as I've been happy with my current settings. They seem to be working for me so in reluctant to change anything.

Performance wise, the original corals I had prior to the swap over are now showing good colouration, except one, which was like this prior to the change over. It's a green Digi, which refuses to colour up for some reason. I've noticed in the last week some corals starting to base out and signs of growth in the tips of others. My red Goniopora has now made a full recovery; I was on the verge of binning it at one point when I got it back from the shop. The fans are very quiet whilst the unit is running, unless I put my ear to the unit I cannot hear them when they are working at 80%ish.

The simulation is pretty cool, I was a fan of rolling cloud cover in the Profilux so I was glad to see it incorporated in the Mitras. I should imagine over a longer tank the rolling cloud cover would look even better, starting from one end and moving across the tank.

I updated the firmware last night for the first time, it was very easy and a simple process from start to finish. It went through without any hiccups so I'm now on 1.13. The Control Centre software tells you when an update is available when the lights are connected which is a nice touch.

What I don't like about the lights - there's not a lot really, being a snobby Mac user and having no software for OS X available is my only dislike. That's my own choice of OS and it's not a deal breaker though. I have no issues or concerns with how the light performs, from what I've seen in the last week it certainly grows corals and I'm pleased with the results as I've always struggled with SPS corals in the past. I would like to see connectivity with the Profilux, I believe this is in the pipeline.

It's the same with using the Profilux, there's a slight annoyance in having to use Windows but it's something I can live with.

I would really like to see some Mac support though at some point.

Original post and replies
http://forum.aquariumcomputer.com/sh...6618#post46618

[jeffm59]

Got the 6200 from Your Reef a couple of days ago -- now have the first of three up and running on the new tank build we are doing -- the fixture is awesome

[AQD_ottawa]

wow nice! Please post more pic's we love pic's

[M007]

Originally Posted by jeffm59

Got the 6200 from Your Reef a couple of days ago -- now have the first of three up and running on the new tank build we are doing -- the fixture is awesome

Nice rail

[FabioGiron]

I just received two 6200 from reef bytes today! May be a while before I set them up because I am going to use them for a new tank I have not yet acquired. Got them in black, looks very slick, excellent buying experience. Maybe I will need to set them up over my current, eventually to be moved tank, just to play around with them.

[buller100]

Well its been around the 6 month mark since i got my first Mitras and have now added a second unit as i was having problems which i thought may have been lighting related but as it turns out it was a separate issue.
In the last few weeks the corals that survived have started colouring up again and are looking nice under the new project i am using.

[thelostrican]

Nice

[reefmutt]

Wow, fantastic Buller!
Are using 6100 or 6200?

[BigAl2007]

Buller your tank & coral look stunning under the GHL Mitras.

Are you running a custom project or one from someone else? I'm sure many others would love to know

[buller100]

Originally Posted by reefmutt

wow, fantastic buller!
Are using 6100 or 6200?

6100

[buller100]

Originally Posted by BigAl2007

Buller your tank & coral look stunning under the GHL Mitras.

Are you running a custom project or one from someone else? I'm sure many others would love to know

Thanks . I am running a custom program that is around 11K and runs at full intensity for 6 hours .

[GazzMan]

Has anyone got any links or info on the above, I'm looking for kelvin readings on a typical reef throughout the day from sunrise to sun set if anyone can help

[BigAl2007]

Originally Posted by GazzMan

Has anyone got any links or info on the above, I'm looking for kelvin readings on a typical reef throughout the day from sunrise to sun set if anyone can help

Gazz that's an awesome idea. Try and replicate a "Real World" reef profile.

[reefmutt]

I'd be very interested in that as well..
I would think, though, that we'd need to find info from readings taken below the surface of the water as the kelvin temperature at sea level, above water would be pretty irrelevant..

[GazzMan]

Originally Posted by reefmutt

I'd be very interested in that as well..
I would think, though, that we'd need to find info from readings taken below the surface of the water as the kelvin temperature at sea level, above water would be pretty irrelevant..

Why? The light is still passing through water, this is what I want to play with but I'm having great trouble finding the numbers

[BigAl2007]

If you obtained actual readings (above water) from that area and then recreated the scenario (above water) in your tank the end result should be a very accurate simulation. Yes?

[GazzMan]

Originally Posted by BigAl2007

If you obtained actual readings (above water) from that area and then recreated the scenario (above water) in your tank the end result should be a very accurate simulation. Yes?

Yep I'm thinking the same mate, spent another two hours today on google looking for k readings

[Fishmommy]

I am trying to decide between Radions and Mitras. I like the look of the Mitras light output a lot, but have heard that running whites and reds is a waste and causes algae. Can you guys talk to me about this? Thanks.

[reefmutt]

I'm not so sure for two reasons..
One, we are dealing with inches in an aquarium as opposed to feet or even meters in the ocean
And two, sunrise and sunset are very red to our eyes as we stand on the beach because we can look to the horizon and see the colors of the sunset/rise reflect back at us. But what is directly over head is blue sky. I think the corals under the water 'see' significantly more blue than is apparent above water..
The reds, yellows, oranges are filtered out pretty quickly by sea water after several feet, leaving some greens and then mostly blues traveling to depth and hitting corals- in the wild.
Granted the shallow water corals may 'see' more of the warm spectrum, it is always the bluer end that penetrates....
This is just my opinion.... I am not a scientist, by any means and I would LOVE to hear other people's opinion on this..
It is clear that corals respond much more favourably to the bluer end of be spectrum and we know that photosynthesis takes place at a blue and green peak.
Making the aquarium light 'look' like a natural day to us as we stand on the beach may not (IMO) be what the corals 'see' in a natural day under the water..
I'd really like to have feed back on this... I am really curious to know how others feel..

Fishmommy, I think that the new Mitras 6200 addresses this issue. The Radion is a nice light but I think that he Mitras is a better all around performed..

[reefmutt]

Btw... I FINALLY got my tank rolling. Here's a shot under the midday preloaded Mitras program:
Still cycling...