-=dieseldave=-
Well-known member
I'm glad that is the case. Thanks for the follow up.
designing an LED lighting fixture
- Thread starter darklcd
- Start date
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Anyone here read Advanced Aquarist?
Dana Riddle - whom many consider to be "the" lighting guru in this industry/hobby compared MH and LED in an actual test. Real numbers. Real results.
Good read.....
He really gave a favorable analysis of LED, in that they do produce about 20% less light than a 250 watt M (tho the mfgr. markets the unit tested as a 250 watt equivelant) that the actual useable light (PUR) is as good or better than MH.
He makes an interesting reference tohow many of us tend to over-light our aquariums.
When I reflect on a number of acros I have bought that were pale bodied with bright tips - then in my tank, under strong MH light - they turn brown - I am beginning to think Dana has a point......
I hope the prices come WAY down on LEDs - I will try it - for a number of resons: low to no noticeable heat out put means, no need for a chiller, and my room will stay comfortable. Long life means not replacing bulbs every 8-12 months.
T
Dana Riddle - whom many consider to be "the" lighting guru in this industry/hobby compared MH and LED in an actual test. Real numbers. Real results.
Good read.....
He really gave a favorable analysis of LED, in that they do produce about 20% less light than a 250 watt M (tho the mfgr. markets the unit tested as a 250 watt equivelant) that the actual useable light (PUR) is as good or better than MH.
He makes an interesting reference tohow many of us tend to over-light our aquariums.
When I reflect on a number of acros I have bought that were pale bodied with bright tips - then in my tank, under strong MH light - they turn brown - I am beginning to think Dana has a point......
I hope the prices come WAY down on LEDs - I will try it - for a number of resons: low to no noticeable heat out put means, no need for a chiller, and my room will stay comfortable. Long life means not replacing bulbs every 8-12 months.
T
dhnguyen
Pain In The Arse
Acros turning brown is not an issue with too much lighting IMO/IME. If anything the more light you throw at them , the more zooxanthella (brown) they will expel and more colour pigments should show through.
When your acros turn brown it is either lack of lighting or excessive nutrient/water quality issue.
Bleaching is more of a sign of too much light IME.
When your acros turn brown it is either lack of lighting or excessive nutrient/water quality issue.
Bleaching is more of a sign of too much light IME.
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