How do you know when you need to replace your MH SE bulbs ?

avalanche wolf · 03-11-2007, 09:25 PM

I noticed my SPS not liking to be anywhere close to the middle or top of the tank but like it on the bottom on the sand bed. It is the same with all my SPS this way.

I am wondering if it is just too bright for them or maybe the bulbs need to be replace.

For those that dont know it is a 100 G with 2x250 14k and 1x175 20k , they came with the hood when i bought it used.

I also run 2x96watt PC attinics.

Like i said just wondering if it is time to replace the bulbs. If I dont run the attinics the tank looks VERy yellow

Geoff · 03-13-2007, 10:21 AM

why do you think the SPS do not like light? with 14K and 20K bulbs i really doubt you are over PARing the corals. if you were running Iwasaki's or XM10K bulbs than you might be close, but those bulbs are not very PAR intensive.

i try to switch my bulbs out once a year.

G~