View Full Version : increasing light

12-25-2009, 9:25 AM
Hey guys i am swapping my corals to my 125 from my 55 The 55 had power compacts coralife 4 65 wat bulbs bulbs were a year old, the new fixture Is a aquatic life 8 bulb fixture 39 wat. I ran the power compacts way to much dont tell me i know but i ran them almost all day long from 8 am till most days 12 am so 16 hours lol way to much but i never did fix my timer lol. I moved a toadstool who was sick a while back i had to cut him around the edge and do iodine dips but that was about two months ago he is recovering now and i moved a mushroom and one of my green zoa colonys small starting colony just bigger than a frag. Left to move over are more zoas and palys a galaxy coral hammers, frogspawn, another toadstool, purple star polyps,more mushrooms and xenia. What type of hours should i run on the light to not bleach the corals from the light increase?

12-25-2009, 9:28 AM
the pre programed light timer the system came with is
700+ start9:00-end1700
420/460 start 8:00-20:00
led Start-20:00-end 6:00

I changed the 420/460 to go off at 18:00 and the led to end at 8:02

12-25-2009, 9:30 AM
so thats ten hours of light from the 420/460 and 8 for the 700+ and a full night of led

12-25-2009, 8:17 PM
thats alright depending on how much current you got make sure your cyanos dont start coming around and if so add more current and a phospahte reactor

12-25-2009, 8:20 PM
You may want to adjust your times to suit when you'd more likely be home to see and enjoy the tank. My MH come on at 3:00pm and shut off at 10:30pm with 30 minutes of actinics before and after.

12-25-2009, 8:56 PM
I would drop the light down to 4 hours a day if you have corals. A PC compared to T-5 has a chance of shocking the corals. I would work up 2 hours every 4 days until you hit 8 hours. I wouldnt be that worried about cyano but nuisance algae is a different story.