If you can, I'd rather do a meter of each of the 14,000k and 20,000k. If you can't, then the 20,000k with your current lights would give better colour, but for coral growth the 14,000k would be better
Eish sorry to hear that bud.. part of a reef i guess..Ok, woke up this morning to find my nennie went walkies during the night and got a bit chowed up by my one power head. Its dead now...
Lucky though it didn't pollute the tank. So now I'm wondering if I could rather get a tube anemone. Do they also go walkies? I assume they can't seeing as its a tube.
The other option is an elegance



Oh ja, with regards to the water temp, I simply took 2 cpu fans and installed them into a piece of wood I got for my stand. They are positioned over my sump. In your case you could try installing them into the canopy, or get a laptop cooling fan and open your canopy just enough for them to blow onto the water surface. But then you'll probably need an atu, seeing as the evaporation will be high.
Will it help if a put a cpu fan opver the sump?