RedEyeReef
Active member
FastUno, I'm confused. Are you running T5's, MH, or both? What bulb combinations?
FastUno said:I was running a 6 bulb T5 fixture to begin with, of which I ran only 4 bulbs for the most part. Especially after realizing my dilemma.
I now run, as my description at the bottom says, "Aquactinics 2x250 (XM20K)/2x54 T5 (AB & B+)".
dhoch said:I've been kind of lazy about following this thread, but just wanted to post something I found very interesting this weekend.
I was at MACNA at there was a lot of talk of our tanks getting TOO MUCH LIGHT.
There was a study done (allthough very preliminary) that at least suggested that at least one species of coral had a detremential affect of prolonged exposure to intense light over an extended period of time (200 uMols vs 100 uMols over a 15 hour light period over a period of about 30-60 days, can't remember the overall length of the experiment).
The study was done in Hawaii, where the person controlled for water and flow (it was the same, and just varied the light for coral frags of a single species of SPS). They found that over the course of the study (and they are still doing readings) that the photsynethic content of the corals went up under the 100 uMol lighting and under 200 uMol went up initially and then down afterwards.
THe thoughts was after noticing that most Hawaii days are sunning in the begining and cloudy later on. (for those who randomly turn off your tanks lights, or think that more light is always better I thought this would be interesting to you).
Dave
FastUno said:One note on Magnetic vs Electronic ballast. Generally e-ballast cost more, use less electricity, & give off less heat.
In my case, since the magnetic ballast comes free with the fixtures, it would take longer for me to recoup the money saved on electricity vs the money spent on the e-ballast. If there was a bulb that gave that perfect look & higher par, then I would upgrade with no questions asked.
The Grim Reefer said:With VHO actinics I would run 3 80 watt T5's, I GE Daylight and 2 Aquablues. That would only take 1 ice cap ballast and should put out plenty of light for LPS. I was running 6 on my 125 and it was overkill.