reply
Old lights aren't always the culprit the GHA equation. GHA will only grow if your nutrients permit, and old lights are just an aiding variable. How are your alkalinity levels? I have found, as well as other reefers, that elevated alkalinity levels make it more difficult for GHA to grow. The reason for this is beyond me but try elevating them slowly over the next few days and see what happens. At the very least, your corals will enjoy it.
Danny
__________________
THE BARQUARIUM:
55 gallon cube - 50 lbs LR - ASM G3 skimmer - 30 Gallon sump - 22 Gallon refugium / frag tank - 4x 24 watt HO T5's - Mag 9.5 return - Pin Point PH monitor - 400 watt XM 20K MH in Lumenarc reflector - Dual stage GFO/NO3 media reactor - 6 stage RODI auto top up -Wavemaster Pro running 3 Koralia 2's.
Fully stocked with fish, corals and usually some fine scotch
http://www.canreef.com/vbulletin/showthread.php?t=55041
|