Well I actually have the 20wt one, and that is flouresent wattage, so compared to the light output of an incandesant lamp it is pretty good. Here is the one in action, it is pretty bright.
Ok I found this quote after digging around a little...."A single 20-watt compact fluorescent lamp used in place of a 75-watt incandescent will save about 550 kilowatt-hours over its lifetime."
Also if ya look at the package on the flood light it is only a 19wt bulb that produces 75wt of light.
The calcium reactor has been running for almost 2 weeks now. I had to get the new sump and fuge built to get it in there, I was 3/4" short before. I always strugled with alk and calcium levels, and dripped my share of kalk, but the reactor got my levels near perfect in 2 days. I am slowly adjusting it, and am real close to being just right...
Nope, and I am suprised. I thought I would have to drip a little kalk to keep the PH up, but my Ph is 8.2 during the day and dipping down to 8.0 at night.
I don't know that much about them... yet.. but I have heard of people having major PH swings. I guess you have yours 'dialed in' just right!
Also, do you have your co2 tank strapped down? I've heard that those things can turn into a dangerous projectile really quick... although i'm not sure how. Maybe a high pressure leak?
If they fall over and the neck breaks then the gas will expel out the hole turning it into a rocket. No I dont have it strapped down, but it has no way of falling over in that cramped cabinet. It is a smaller tank also, low ceneter of gravity, I know the full size canisters that are 5' tall are always chained in place.
one thing that can happen with a CO2 tank is the bubble count can change. when using its intended porpuse these small fluctuations are not at all noticed, but for a reef (non-intended use) small flucuations can be the diference between a happy tank and a pH crash. i would recommend a pH monitor with alarm.
I use the smallest Coralife dual lamp. I think it's either 9Wx2 or 13Wx2...don't remember. Don't need much my sump/fuge is really a tank in disguise. Just LR, LS, Shrimps, Hermits, Brittle Stars, and sponges.
A contoler with a ph probe gives you consistant effluent from the reactor. Turning the CO2 off and on generally keeping between 6.5 and 6.7 depending on were you dial it in at. It's the best method I have ever used with a calcium reactor and fluxuations with the co2 count don't matter as much