Quote:
Originally posted by trmiv
How big of a difference is a 15 increase in ppfd? I have the Phoenix 14K with an IceCap electronic, which I see is 73 ppfd. The PFO HQI gets 88 ppfd with this bulb. Is that a significant enough increase to warrant an upgrade from my electronic IceCap to the PFO (or Bluewave III)?
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Well in this case it is almost a 20% increase. As for wether to change would depend on a lot of factors.
1) is your tank and corals doing well right now. If things are going good - do not change.
2) How deep is the tank ? what fixture are you using. ? If hte tank is 24" or less and you are using the Sunlight supply or PFO DE pendants, you are fine
3) If you want you can compensate for the difference by lowering your lights. A couple of inches will do the trick.
So as you can see there is really no clear cut answer :-) You can make it work once you understand what you are getting from your current lighting system.
sanjay.