power compact bulbs

Triggerfish1 · 07-28-2003, 06:26 PM

are the 10k power compact bulbs ok for plants? I have 2 of these and 2 6700k bulbs in a 4 ft power compact light.

David

GulfCoastAquarian · 07-28-2003, 06:56 PM

They're not optimal but they're fairly decent. If your total light output is under 2.5 wpg, then I think you'd notice a significant improvement by switching to some plant growth bulbs.

Triggerfish1 · 07-28-2003, 07:55 PM

The lights are 260 watts they will be on a 75gal so it would be about 3.5 watts per gallon. Will the 10k's be too blue and grow a lot of algae?

David

Hygro-Junkie · 07-28-2003, 09:30 PM

I use 10Ks with no problems, that its ALL 10ks, no 50/50 actinic. Its a very green tint compared to the original 9325k's in my hood.

I'll probably go back to them when I need to replace again. I got about the same growth rates from both, but the color of the 9325's are more appealing to me.
Later

Triggerfish1 · 07-28-2003, 09:45 PM

I got the compact striplight with 2 10k's and 2 actinic. I am replacing the actinics with 6700k bulbs, so I will have 2 10k's and 2 6700k bulbs.

David

GulfCoastAquarian · 07-28-2003, 09:47 PM

Unfortunately, it is impossible to predict for sure whether or not the 10,000K bulbs will be algae-growing machines. Time will tell. The problem is that not all bulbs are the same, even with the same color temperature rating. One of the best Power Compact bulbs has a color temp of 9325K and is no where near as blue as most 6700K daylight bulbs.

clearASmud · 07-29-2003, 08:31 PM

Im will be running a single 65W 6700K PC for a 20G

but Im wondering if a single 55W 9325K PC is suitable for my planted tank( as in light spectrum)?

20G will be CO2 regulated to 6.5~7PHish and fully planted with light-demanding plants.

GulfCoastAquarian · 07-29-2003, 10:11 PM

I think the 9325K GE bulb, driven at 65watts, will be plenty of light for your 20g tank and light-demanding plants.

clearASmud · 07-30-2003, 07:08 PM

but a single 9325 bulb's light spectrum is sufficient for the plants?

GulfCoastAquarian · 07-30-2003, 09:05 PM

I've never used one, but reports indicate that it is adequate as a standalone plant growth bulb. I'm going to order some from 1000bulbs.com so we'll know soon enough!

07-28-2003, 06:56 PM	#2 (permalink)
GulfCoastAquarian ///M (View User Tanks) PTrader: (5/100%) Join Date: Jul 2002 Location: Winston-Salem, NC Posts: 3,574	They're not optimal but they're fairly decent. If your total light output is under 2.5 wpg, then I think you'd notice a significant improvement by switching to some plant growth bulbs. __________________ - Sam P - plantedtanker in limbo - all tanks currently in storage

07-28-2003, 09:30 PM	#4 (permalink)
Hygro-Junkie Algae Grower (View User Tanks) PTrader: (0/0%) Join Date: Mar 2003 Posts: 46	I use 10Ks with no problems, that its ALL 10ks, no 50/50 actinic. Its a very green tint compared to the original 9325k's in my hood. I'll probably go back to them when I need to replace again. I got about the same growth rates from both, but the color of the 9325's are more appealing to me. Later __________________ 75g Light:4x54w T5HO 2x10000k and 2x6500k Filter/Heater:Rena XP3, Fluval 205 Substrate:100% Flourite CO2:5lb pressurized, glass diffuser into powerhead

07-28-2003, 09:47 PM	#6 (permalink)
GulfCoastAquarian ///M (View User Tanks) PTrader: (5/100%) Join Date: Jul 2002 Location: Winston-Salem, NC Posts: 3,574	Unfortunately, it is impossible to predict for sure whether or not the 10,000K bulbs will be algae-growing machines. Time will tell. The problem is that not all bulbs are the same, even with the same color temperature rating. One of the best Power Compact bulbs has a color temp of 9325K and is no where near as blue as most 6700K daylight bulbs. __________________ - Sam P - plantedtanker in limbo - all tanks currently in storage

07-29-2003, 10:11 PM	#8 (permalink)
GulfCoastAquarian ///M (View User Tanks) PTrader: (5/100%) Join Date: Jul 2002 Location: Winston-Salem, NC Posts: 3,574	I think the 9325K GE bulb, driven at 65watts, will be plenty of light for your 20g tank and light-demanding plants. __________________ - Sam P - plantedtanker in limbo - all tanks currently in storage

07-30-2003, 09:05 PM	#10 (permalink)
GulfCoastAquarian ///M (View User Tanks) PTrader: (5/100%) Join Date: Jul 2002 Location: Winston-Salem, NC Posts: 3,574	I've never used one, but reports indicate that it is adequate as a standalone plant growth bulb. I'm going to order some from 1000bulbs.com so we'll know soon enough! __________________ - Sam P - plantedtanker in limbo - all tanks currently in storage

07-28-2003, 06:26 PM	#1 (permalink)
Triggerfish1 Algae Grower (View User Tanks) PTrader: (0/0%) Join Date: Jul 2003 Location: MN Posts: 28	are the 10k power compact bulbs ok for plants? I have 2 of these and 2 6700k bulbs in a 4 ft power compact light. David

07-28-2003, 07:55 PM	#3 (permalink)
Triggerfish1 Algae Grower (View User Tanks) PTrader: (0/0%) Join Date: Jul 2003 Location: MN Posts: 28	The lights are 260 watts they will be on a 75gal so it would be about 3.5 watts per gallon. Will the 10k's be too blue and grow a lot of algae? David

07-28-2003, 09:45 PM	#5 (permalink)
Triggerfish1 Algae Grower (View User Tanks) PTrader: (0/0%) Join Date: Jul 2003 Location: MN Posts: 28	I got the compact striplight with 2 10k's and 2 actinic. I am replacing the actinics with 6700k bulbs, so I will have 2 10k's and 2 6700k bulbs. David

07-29-2003, 08:31 PM	#7 (permalink)
clearASmud Algae Grower (View User Tanks) PTrader: (0/0%) Join Date: Jul 2003 Posts: 65	Im will be running a single 65W 6700K PC for a 20G but Im wondering if a single 55W 9325K PC is suitable for my planted tank( as in light spectrum)? 20G will be CO2 regulated to 6.5~7PHish and fully planted with light-demanding plants.

07-30-2003, 07:08 PM	#9 (permalink)
clearASmud Algae Grower (View User Tanks) PTrader: (0/0%) Join Date: Jul 2003 Posts: 65	but a single 9325 bulb's light spectrum is sufficient for the plants?

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