Ah, got it! Yea. Old AI had the same problemsThe Version 1 and Version 2 of the ReefBreeders Photon. You might have to go RC since the V1 is not very new, but everybody will caution folks to keep the whites under 30-40%.
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Ah, got it! Yea. Old AI had the same problemsThe Version 1 and Version 2 of the ReefBreeders Photon. You might have to go RC since the V1 is not very new, but everybody will caution folks to keep the whites under 30-40%.
V1 RB and even the V2 can burn coral... mostly SPS. You can search on this issue. You are right to keep the whites below 30%, IMO. This is a quality thing, not a quantity thing.
In general, I only ever hear of it with white LED spectrum and SPS, but mostly acropora.
The ones in the current fixture are Cree XP-E 5500 5w
On another note you can do this with any massive or high spike the corals don't like regardless of color. The spectral distribution is skewed to such a degree that the acropora are damaged. This was never possible with bulbs.
With T5's its evenly disbursed par, with leds, they use reflectors that focus the light down and can cause par hot spots.
So here is an example of T5 par coverage from the Aquatic Life T5 fixture
And here is a graph for a Radion G4 Pro
As you can see, the leds have a pretty good hot spot right under the fixture whereas the T5's have an even blanket of par coverage. Also with LEDs there is alot more shimmer, which causes quick bursts of high par to corals, whereas T5's dont give off alot of shimmer so the corals get continuous par amounts with little fluctuation.
I hope this helps with your question
This par chart is with the light 8" off the waters surface 6" under the water in the tank.Is this 6 inches from the bottom of the tank or top of the tank?
Wow, 4 T5 bulbs don't put out as much PAR as I thought..
So If I have a T5/radion hybrid, I'm assuming it would be mathematically correct to just add these numbers up?
If we hit only the nm corals use , the tank would look pink. (Red and blue )
Not a promo , but look at where the cloryphyl and carotenoids are.
The kessil logic thing is to make sure you can grow corals no matter where it’s set. It’s just more blue or less.
I run my lights at a 1:1 white blue. Most of the useful stuff is in the blue end , yes, but I like that me red fish and red corals look red. You need red to reflect red so we can see red.
Fortunately kessil doesn’t post any of thier spectrum or par or anything else , so we don’t know how much green ( middle green) they use. They need some as other wise it would be blue ish pink (they do use less red than some )
Make sense?
No, it does not make sense.
The graph you posted from one of the led manufacturer is wrong information. Coral photosynthesis action graph is different than plants on land.
Lets don't forget that the Aquatic Life is not made to be a PAR monster with T5s. It is a solution for people who are serving two masters. You cannot expect a hybrid solution to be a better performer - it was made so that people have options and versatility... you sacrifice something for this.
On an ATI Fixture, you can get 80-100 PAR per bulb 6" under the water... but it is made to just kick *** is this world only. When you go all-in you can kick more ***.
Actually it is not that different.. when considering photosynthesis..
http://jeb.biologists.org/content/206/22/4041
Need to keep in mind both are done w/ extracts and it is different (for both) in actual tissue BUT the main absorbances still apply..
I agree. It’s the one shortcoming in my opinion.The AquaticLife reflectors leave a lot to be desired, that is for sure.
Yes. 4 bulb ATI crushes 4 bulb aquatic life in PAR. ATI 4 bulb gets me about double the PAR if I recall.Have you done any comparison between ATI and aquaticlife reflectors?