How long are you running halides

[reefndude]

Halide users. How long are you running your halides a day? I running 2 400 watt bulbs. They are running 6 hrs .

 

[3mm3]

I run two for 7 hours and the third in the middle currently for 3 hours.

 

[skip0211]

I run 3 400 watt Radiums in a 265 sos tank, 8 hours

 

[skip0211]

3 400 watt Radiums on 265 gal SPS tank. 8 hours

 

[reefndude]

I'm new to halides and I just want to make sure I am not over doing it.

 

[Centerline]

8 hours - 2x radium 250s on a 90.

 

[cilyjr]

3x radium aquastarblue 250w bulbs on lumatek ballasts for 6 hours. I have 2 x sol blues that ramp up 1 hour before than ramp down 1 hour after.

 

[Dana Riddle]

Do you happen to have any light measurements (PAR/Lux)? Photoperiod and intensity go hand-in-hand. Photoperiod won't matter if the light intensity fails to meet minimum requirements. On the other hand, light intensity exceeding the maximum required could result in permanent damage to the coral/zooxanthellae.

 

[DSC reef]

I run 2-150watt halides for 6 hours daily with the T5 bulbs on for 11 hours.

 

[3mm3]

Do you happen to have any light measurements (PAR/Lux)? Photoperiod and intensity go hand-in-hand. Photoperiod won't matter if the light intensity fails to meet minimum requirements. On the other hand, light intensity exceeding the maximum required could result in permanent damage to the coral/zooxanthellae.

By chance do you have a good link to a chart listing minimum intensity requirements for a variety of commonly traded coral? I feel this information would help many people out.

Thanks!

 

[five.five-six]

I’m running 250W radium B’s on a magnetic M80 ballast 5 and a half hrs a day with actenics running 3 hrs prior and 2 and a half hours after.

 

[reefndude]

Do you happen to have any light measurements (PAR/Lux)? Photoperiod and intensity go hand-in-hand. Photoperiod won't matter if the light intensity fails to meet minimum requirements. On the other hand, light intensity exceeding the maximum required could result in permanent damage to the coral/zooxanthellae.

I don't have one. Local reef club has a par meter and I will try to get my hands on it. I have been keeping a close eye on the acros and nothing is bleaching at this point

 

[Dana Riddle]

See here (at the end of the article) for a listing of minimum/maximum light requirements for some corals:
http://www.advancedaquarist.com/2007/3/aafeature1

 

[Dana Riddle]

Yes, try to get some PAR readings. There are so many variables that can make a huge difference in light intensity: Lamp mounting (vertical v. horizontal), improper mounting (bulb designed for horizontal use but used vertically, and vice versa), type of reflector (high-bay and others), type of reflector material (white paint, polished aluminum), type of lens (glass v. acrylic), ballast (tar v. electronic), height of fixture above the water, etc., etc. I listed some min/max light requirements of a few corals in response to another post in this thread. Might be helpful.

 

[reefndude]

About to sit down and do a little reading. Thank you very much

 

[reefndude]

About to sit down and do a little reading. Thank you very much

 

[P-Dub]

When I was using Halides, I had two 250's and one 400 with 2 VHO actinics. The bulbs themselves were ~9 inches off the surface. The two 250's were double ended Ushio's 14000K and the center 400 was mogul 10000K. The VHO's would come on for an hour before the 250's and stay on for 1 hour after the 250's. The two 250's would run for 8 hours. The 400 in the center would run for 4 hours mid light cycle. This worked well for me with a standard 125g setup. Outstanding growth and coloration on a mixed, predominantly SPS tank. Still love halides.

 

[reefndude]

I'm loving them so far

 

[reefndude]

See here (at the end of the article) for a listing of minimum/maximum light requirements for some corals:
http://www.advancedaquarist.com/2007/3/aafeature1

Nice article but admittedly made my head hurt a little. I have noticed in the past some of my acros that supposedly like high light did much better with better color in lower light areas in my tank. I'm still experimenting with them under the new lights and have had to place some down low. Still learning

 

[cracker]

Hang in there reefndude, we are all learning . At least I am ! So many variables to consider.