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For sterilizer i meant to to get rid of algae but would it stop from appearing. I have none now, but it might start growing when leds are in place. How to calculate how many leds i need for a pacticular setup? So, i would at least know how many order Has anyone seen a table with number like...

It would be just great if you could find the link that study. For the algae issue. The question actually appeared because with better light the possibility of algae rises (even with the correct spectrum), so, i must either add CO2 to boost usage of the nutrients by plants or control algae some...

1. I remembered, that Fluorescent lamps were used forplants lighting for decades. And even 10 years ago majority were lit with old ballasts which flicker at 100hz. And they even grew vegetables with such light. So, this is another confirmation that PWM is fine for plants. However, i don't know...

Hello all! I am new to led aquarium lighting but i am pretty experienced electronics hobbyist. So, for me is not problem to build a smart and controlled DUY lighting led system. However, there are question on what leds to choose and how to light them up. Let's start from the simple one 1)...