Aquaglo bulbs by Hagen

fishlady · 02-14-2004, 02:33 AM

Hello: In all my reading about live plants in the aquarium it seems that a k of around 6500 or so is the best. I ordered a bulb by Hagen that is sold for plants, their aquaglo, and the k is 18,000 (very blue) Is it ok, and why such a high K?? :?

2la · 02-14-2004, 04:00 AM

It's fine. Ignore the Kelvin ratings--they're poor indicators of a bulb's effectiveness. Intensity is the most important factor for plant growth, then spectrum. Kelvin tells you only roughly what color the bulb appears and is a matter of personal taste, though generally it's best to avoid actinic blue bulbs.

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02-14-2004, 02:33 AM	#1
fishlady Planted Member (View User Tanks) PTrader: (0/0%) Join Date: Jan 2004 Posts: 289	Hello: In all my reading about live plants in the aquarium it seems that a k of around 6500 or so is the best. I ordered a bulb by Hagen that is sold for plants, their aquaglo, and the k is 18,000 (very blue) Is it ok, and why such a high K?? :?

02-14-2004, 04:00 AM	#2
2la Planted Tank Enthusiast (View User Tanks) PTrader: (0/0%) Join Date: Aug 2002 Location: Portland, OR Posts: 993	It's fine. Ignore the Kelvin ratings--they're poor indicators of a bulb's effectiveness. Intensity is the most important factor for plant growth, then spectrum. Kelvin tells you only roughly what color the bulb appears and is a matter of personal taste, though generally it's best to avoid actinic blue bulbs.