Minimal wattage works out to 78W if I count sump volume, 63W if not. So basically, the 2x36W fixture is just enough or a bit to small.
I plan on sticking with softies for now, I don't think my tank size or husbandry skills are up to SPS
corals yet. That said, I'd like to stay future-proof, so I won't rule out either SPS
or a clam completely.
If I get the MH
fixture, would I end up hurting my current corals instead of helping them? (my tank is 30 cm deep) The MH
I'm looking at has an extendable arm, so I could extend the arm to put the light farther away from the tank. Would that help? The MH
is about twice the price of the PC
, but the PC
fixture is basically 60 cm only, so if I ever upgrade my tank it will be useless.
As for photo-acclimation, I currently have the lights on for 12 hours. So if I go for MH
, I should set this to 4 hours, and increase by 1 hour a week until I reach, what 10 hours? 12 hours? I guess I could start a bit higher with the PC
fixture, say 6-8 hours?
Finally, any tips on how to tell VHO