Changing Bulbs

[Keith T]

I'm about to switch from aqua-medic 20k 250w de mh to phoenix 14k's. Should I be doing anything special like reducing the lighting time or changing one at a time ect. ? The aqua-medic bulbs are a year and a half old.



Thanks Keith

[Aquadude]

I wonder if the Aqua-Medic is a re-brand of another lamp. I have never heard of an Aqua-Medic lamp. What is printed on the bulb?

[Keith T]

The bulbs are actually AB aqualine 20000+ .

Keith.

[Aquadude]

Go here to compare the spectral and light output of those two lamps: Sanjay's Lighting Comparisson (http://www.reeflightinginfo.arvixe.com/index.htm)

The Pheonix has nearly double the light output of the AB-20K. You should use the window screen method to reduce the shock of all that new light intensity.

[Keith T]

Thank's Todd. I will have to try something. Do you think just one will do or do you suggest more than one?

Keith.

[Aquadude]

Buy enough to do three layers over your tank. Then every week remove one layer.