400W HPS

[Choadmeyer]

I have a 400W High Pressure Sodium lamp from my greenhouse and was wondering if HPS bulbs are used in reef keeping. I understand that HPS is for flowering and MH is for growth, but couldn't I use it anyway? It'd look great above my 29g.

 

[reefman23]

The spectrum is usually all wrong with the HPS lamps and that is why you dont see them being used on reef tanks. MH have a totally different spectrum...actually there are about 5 different main spectrums (6500k, 10000k, 14000k, 15000k, 20000k) available and those main spectrums vary from lamp to lamp. The HPS I would guess to be somewhere in the 2500k-3000k area??? Just not appropriate... and the spectrum isnt "full" enough either.

I hope that helps and :welcome to nanotank.com!

Jesse

 

[Choadmeyer]

Thanks for clearing that up Jesse, you've been very helpful. I guess I'll keep that in the greenhouse where it belongs.