GHL Mitras Club

[BigAl2007]

Allmost unfortunately I don't have a Mitras over a large tank as my tank is only a 34g RSM system. I am only going from what others on this and other forums have done with their tanks.

I didn't mean to offend or belittle you with my comment about light and how it covers more than just the size of the unit. That was intended as sincere information and not a slam towards you in the least.

I'm only trying to help and without specific links to specific tanks I don't have anything else to go on and can therefore not be of any help to you. My sincerest apology.

 

[Jony375]

My idea is not that the maximum PAR reaches all corners of the Aquarium, but good light arrives in the upper part and the sps the placing under the screens. But if amount two or three online I would like to know if I would cover all the aquarium or me would have shadows in any corner.
Not be if I explain what I mean?

 

[AQD_ottawa]

allmost I can help you here

The Mitras uses unique reflectors NOT optics, the light is filtered into a wide but effective downward cone enabling both high par and also complete LED convergence. You also get wide coverage

the lamp can easily cover a 36x30x30 cubic area, we recently had a unit working on a 48" deep system just to give you some head spin of the power of this unit, but its not all about power the spectrum also holds its own.

From this please work your lighting needs on the above figures of 36x30 surface area, even though we have a tank running one unit on 40"x36"

My advise would be

Length ways = 2 units
Width ways = 3 units

 

[Yaris]

Hello I leave a photo of the last piece of my reef, power went up 100% in high efficiency and rodneyri to thank you for your help, I hope you like it.

 

[BigAl2007]

Great pic Yaris Thanks for sharing

 

[Jony375]

allmost I can help you here

The Mitras uses unique reflectors NOT optics, the light is filtered into a wide but effective downward cone enabling both high par and also complete LED convergence. You also get wide coverage

the lamp can easily cover a 36x30x30 cubic area, we recently had a unit working on a 48" deep system just to give you some head spin of the power of this unit, but its not all about power the spectrum also holds its own.

From this please work your lighting needs on the above figures of 36x30 surface area, even though we have a tank running one unit on 40"x36"

My advise would be

Length ways = 2 units
Width ways = 3 units

Intone it recommends to me that but I am going to have 100 % sps as the whole aquarium, perfectly I can put: 2 lengthways: _____ ______ Or 3 widthways: | | | have I understood It well?

 

[reefmutt]

hey Jony, yes that is exactly what he meant. with 3 mitras going | | | you will have great coverage..

 

[Jony375]

And do they want to say that if I put 3 units in this position, me the light is not going to stand out out of the aquarium? That is to say, if an alone screen covers 36x30 inches that are 90x75 cm, if I put them widthways and to 30cm of the level of the water, is light going to go out for me ahead and behind the aquarium not?

 

[AQD_ottawa]

with any light not within a canopy you will get over spill. If this is a concern for you then do this. - expect you need 3 lamps but start with 2 see how that goes and then if required go up to 3. Better to start with too little than too many

 

[Jony375]

with any light not within a canopy you will get over spill. If this is a concern for you then do this. - expect you need 3 lamps but start with 2 see how that goes and then if required go up to 3. Better to start with too little than too many

did not understand the first part? With any light not within a canopy you will get over spill.

 

[AQD_ottawa]

meaning if the lamp is not in an enclosure (tank hood/Lid) light will always shine outside the tank.

Mitras can not be put in an enclosure.

 

[reefmutt]

All types of lighting, whether it is m.h. or t5 or led will have some light leakage.
If you hang the mitras aprox. 10cm above the water (like the instructions say) you will have minimal light leakage

 

[Jony375]

OK, now what I understood. This clear that liz will come out just like the current T5, but to what I meant I is that will leave more light ma if I put 3 units than if I put them lengthwise, widthwise not?

 

[Flagswipe]

Well I think I am finally cured of my need to experiment with LED. I posted some pics approx 10 days ago with some pretty healthy, fairly well coloured up SPS.
Now I have a tank full if melting SPS
Not RTN or STN but burnt tips, bleaching, now algae growing on them. 3 pieces look ok still with decent colour

Acans on the bottom look nice

Alk, calc good. No other changes.

Signed
Depressed

 

[AQD_ottawa]

Sadly this is classic acclimatization issues, if you put SPS under LED at too high power you will burn them, they must go through a very gradual acclimatization process starting at as little as 30% going up by 5% every 3-4 days.

This goes with every LED lamp on the market.

Mitras is a lot more sympathetic to this as it has no hot spots but even with Mitras you still must go slowly.

Sorry for you losses

 

[Flagswipe]

I used Rodney's program (absolutely no blame here) in high efficiency not high output and put the single unit 20" over the tank. I thought this would be plenty of leeway for acclimating everything

Thanks for the condolences

Sadly this is classic acclimatization issues, if you put SPS under LED at too high power you will burn them, they must go through a very gradual acclimatization process starting at as little as 30% going up by 5% every 3-4 days.

This goes with every LED lamp on the market.

Mitras is a lot more sympathetic to this as it has no hot spots but even with Mitras you still must go slowly.

Sorry for you losses

 

[AQD_ottawa]

Rodneys system is very acclimatized the Mitras can illuminate strongly down to 48" (we have a system running 18 Mitras to that depth) so raising by 20" will sadly not be enough. You do still have to acclimatize the corals under low light settings for a good 10 days raising the % slowly.

Typically it will be deep water SPS that suffer first.

 

[AQD_ottawa]

Double post again - cmon RC hurry up and change over servers! :headwally:

 

[M007]

I used Rodney's program (absolutely no blame here) in high efficiency not high output and put the single unit 20" over the tank. I thought this would be plenty of leeway for acclimating everything

Thanks for the condolences

Hey Dwayne, sorry for the frustration. Seriously you have to ramp up slowly. I fried a bunch of acro with my first LED fixture, taught me to go easy when I set up with Mitras. I found my sweet spot was 20cm over water and started at 75% intensity. Went to 80% after 6 weeks and just last weekend went to 85%. :deadhorse:

 

[Flagswipe]

Youd think a guy with a few years experience and some time with other LED platforms would be able to figure it out, well nope!

Either way, the Geisman fixture is back up over the tank and lighting up the graveyard. Will leave the tank alone for a week and see if the clingers fight back, if not I will dismantle and start again

Hey Dwayne, sorry for the frustration. Seriously you have to ramp up slowly. I fried a bunch of acro with my first LED fixture, taught me to go easy when I set up with Mitras. I found my sweet spot was 20cm over water and started at 75% intensity. Went to 80% after 6 weeks and just last weekend went to 85%. :deadhorse: