Which is better?

[rreekers]

I have a tank that is 26 inches from top of water level to top of substrate.

I have a Compact Fluorescent light fixture, that holds 2, 40w 17in bulbs.

for plant growth would it be best to have:

A. a dual daylight bulb that is 6,700k/10,000k
B. a SmartPaq bulb that is 10,000k Daylight/460nm Actinic

or 1 of each?


what level light does this provide me with in your opinion, LOW? Medium? high?

 

[aqua_chem]

Is this two 40w side by side, or two bulbs arranged lengthwise?

Either way, definitely the 6700/10000K.

 

[rreekers]

they are side by side... its a 60g hex tank.

and OK thank you

what level of light do you think that gives me?

 

[aqua_chem]

Hmmm, tough call. I actually just yesterday picked up a Current USA Satellite fixture (albeit a 40w, and for a 10g). It looks like the reflector is alight...

It depends on a lot of factors, so it's really hard to say... But certainly no more than medium. Probably medium low at the substrate level, but that's total conjecture.

 

[rreekers]

Hmmm, tough call. I actually just yesterday picked up a Current USA Satellite fixture (albeit a 40w, and for a 10g). It looks like the reflector is alight...

It depends on a lot of factors, so it's really hard to say... But certainly no more than medium. Probably medium low at the substrate level, but that's total conjecture.

thanks

yeah the man I purchased these from used then for 10g SW tanks. I thought I would give it a shot because it its definitely better than my original 3 bulb 15w t8 fixture .. price was right on these also, package deal for $50 included 2 of these lights, 2 10g tanks, azoo air pump with backup battery, tons of air stones, a few cheap filters, some clip on lights, spou ge filters, and a case that it all fit into.

I've had the lights for 3 years, used on and off ... I think I'm going to order some new bulbs that's why I ask what would be the best

medium/low light is great and sufficient for my planted community tank, at least I think it is.. the liquid ferts have been helping ( flourish) just started doing flourish excel along with regular flourish 3 days ago