The Official Asylum Reef Tank Thread

I just ordered two 400w 14K HIDs and two 65w actinic CFs for $160.

I read somewhere on the webz where someone measured the spectrum over the life of an HID and found it stayed pretty constant for a while and then shifted quickly long before the intensity dropped significantly. I have no recollection of anything like that for CFs or T5s but you can see the ends blacken on them so you know something is changing.

[shilala]

Originally Posted by BC-Axeman

I just ordered two 400w 14K HIDs and two 65w actinic CFs for $160.

I read somewhere on the webz where someone measured the spectrum over the life of an HID and found it stayed pretty constant for a while and then shifted quickly long before the intensity dropped significantly. I have no recollection of anything like that for CFs or T5s but you can see the ends blacken on them so you know something is changing.

See, mine aren't blackened at all, and I've never let them get that far. I don't even know if t5's will blacken on the ends.