Metal Halides

[marie]

I have 250w DE bulbs on a 29" deep tank and all the sps have good colour and are growing

[Reefhawk1]

Originally Posted by marie

I have 250w DE bulbs on a 29" deep tank and all the sps have good colour and are growing

What type of bulbs and reflectors are you using Marie?

[marie]

It's just a plain old hamilton canopy with whatever reflector they use (*read* probably not the best ), 3 geiseman 13000k DE bulbs, a 165w actinic vho and a 165w 10000k vho

[Reefhawk1]

How close to the surface are your sps? Nice picture by the way, Corals are beautiful.

[michika]

I use 3 x 400w on my 32" deep tank. I like having the ability to place a wide variety of SPS, LPS, and clams through the different levels.

[marie]

Originally Posted by Reefhawk1

How close to the surface are your sps? Nice picture by the way, Corals are beautiful.

Here is another pic that better shows where everything is.


As you can see everything is in the lower half of the tank

[SusanB]

The GVRD adds sodium carbonate to raise the pH of our water to limit its corrosivity to piping. The pH can fluctuate depending on which reservoir they're drawing from, how much soda ash they're adding (or if the system is working at all) and what form of chorine they're using to disinfect.

The chemical analysis of Vancouver water can be found by digging around the GVRD website quality control reports

http://www.gvrd.bc.ca/water/quality-and-treatment.htm

or by phoning them.

SusanB

[X-Treme]

Originally Posted by SusanB

The GVRD adds sodium carbonate to raise the pH of our water to limit its corrosivity to piping. The pH can fluctuate depending on which reservoir they're drawing from, how much soda ash they're adding (or if the system is working at all) and what form of chorine they're using to disinfect.

The chemical analysis of Vancouver water can be found by digging around the GVRD website quality control reports

http://www.gvrd.bc.ca/water/quality-and-treatment.htm

or by phoning them.

SusanB

Maybe...........Just maybe the wrong thread????