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Changed my new light program and increased intensity, so far shows great improvement in size of my LPS and leathers at the sand bed level. I need to measure the par again to see if i can boost the levels even further. The theory of this as used by david saxby is that the peaks will allow the coral to "rest" in between, to prevent over saturation during photosynthesis... Basically it is to allow higher peak par levels without burning the corals, especially good for deeper tanks. Main lighting period is for 5 hours with 4 peaks at 1/2 hour intervals. At each peak i am running my hydra 52hd at almost full power, but it didn't burn the corals as it is just touching the peak and dropping down again. Also, with my testing with UV, i am running at approximately 70% without much harmful effect. So many theories for UV browning the corals or lightening the colours, no conclusive evidence thus far for me yet. Here's an FTS for your monday blues

Brand new, A, B, C and M 500ml bottle for sale with dosing stand. $60

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I'm not sure what kind of led you are using ,it would be helpful if you could give more detail on the LEDs , a picture would be good too. the algae won't grow so fast it takes about a week just to produce diatoms and slime algae, the green hair algae will follow after the slime algae stuff is cleaned off. It could take 2 to 3 weeks before getting the correct algae to grow and this depends on the lights you R using. if the lights are not strong enuff the screen will only grow the brown slime algae and red cyno. these algae will take up nutrients too but just not as effective as the green hair or tuff algae.