Lighting Question

[SNAKEMANVET]

HAS ANYONE HAD A PROBLEM WITH XM 175 WATT 15K BULBS. EVERY SINCE I HAVE USED THESE LIGHTS, I HAVE HAD A BAD CASE OF DINOFLAGETTES. MY WATER TESTED GOOD. ALK 9-10 PH 8.2 NITRATE 5 AMMONIA 0 PHOSPHATE .01-.05. ANY HELP WOULD BE APPRECIATED.

 

[Kevbarnes11]

I am using XM 175 watt 20K and I have not had any problems.

 

[scarson61]

How close are your lights? I have XM 250 watt 15K and had them too close at one time. It fried my calupra and the only algae that would grow was the dinoflagette's. I moved them up from 6 inches to 13 and everything (including the hair algae ) is growing.
Sanford

 

[SNAKEMANVET]

MY LIGHTS ARE APPROX 8 TO 9 INCHS ABOVE THE WATER. WHEN THIS FIRST HAPPEN A MONTH AGO, I CUT BACK ON MY LIGHTS , VHO COME ON AT 8

 

[SNAKEMANVET]

MY LIGHTS ARE APPROX 8 TO 9 INCHS ABOVE THE WATER. WHEN THIS FIRST HAPPEN A MONTH AGO, I CUT BACK ON MY LIGHTS , VHO COME ON AT 8:30 TO12:00, MH 11:30 TO 1:00 THE BROWN STUFF WENT AWAY, SO I STARTED BACK RUNNING THEM FULL CYCLE. VHO'S 8:30 TO 11:30 ,MH'S 11:00 TO 8:00 VH'S 7:30 TO 9:00. IT CAME BACK REALLY QUICK THIS TIME.