Is the algae that comes off of the scrubber just waste or can it be fed to the tangs in the tank?
Is the algae that comes off of the scrubber just waste or can it be fed to the tangs in the tank?
Plants of the same size were continuously irradiated with light from a lighting device equipped with 630nm red LEDs, a device with 430nm blue LEDs and a pink-colored LED light composed of half red LEDs and half blue LEDs.
This has been covered, their ratio is off but you want between 5:1 and 8:1 red:blue not 1:1 and the LEDs are not 'pink' they just look like that when you blend red and blue. The 1W are fine if you can cram them close enough together. personally I would just use 3W and use name brand like Philips from Steve's LEDs where you know what you are getting instead of a grab-bag or bottom-of-the-barrel bin selection. You get what you pay for.
Yes, 1W LEDs are fine, in fact 3x 1W LED has more radiometric output that 1x 3W LED, but what you run into is a spacing issue, which I believe was also mentioned. That being that you have to mount the LED quite literally right next to each other, which makes soldering difficult, but not impossible. You can get about the same effect by using 3W LEDs and then putting a diffuser in front of them, the way I do it is by keeping 1" clear in front of the LEDs to the diffuser, then another 1" between the diffuser and the screen. This IMO allows the reds and blue to blend together well.
Is the algae that comes off of the scrubber just waste or can it be fed to the tangs in the tank?