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RE: Kelvin options
After having set up my 100 gallon plant tank with half CF's (5000K 55W bulbs)
and half CF (the typical 22W {I think they are 22W} spiral bulbs from Home
Depot) I have found that my plants seem to do better on the Home Depot bulbs
and they are a lot cheaper to use (at least half as much as what I paid for the
CF's from AHSupply). I am curious if anyone else has had experience using both
bulb types and what their results have been. The fish sure look better under
the AHSupply bulbs, but, the plants do not seem to do as well. Anyone else
played around with the Home Depot style bulbs? Anyone know what the Technical
term is for the bulbs from Home Depot ~~laughing at my lack of knowledge here~~?
-----Original Message-----
From: alex wetmore [mailto:alex@phred.org]
Sent: Wednesday, January 07, 2004 12:30 PM
To: gsas-member@thekrib.com
Subject: Re: Kelvin options
On Wed, 7 Jan 2004, Susan Welenofsky wrote:
> What Kelvin are the bulbs at at the Indoor Sun Shop, and how much are
> they? I haven't seen much for 6500 K bulbs through eBay. I'm getting a
> 5,000 K bulb. Would you recommend something else, like 10,000 K?
5000 would be much better than 10,000 for a planted tank. 10,000 is going to
be very blue.
I run a mix of 5000 and 6700K bulbs in my aquarium. I don't use metal halides
though, just CF. The best CF bulbs that I've used are the 92 CRI 5000K 55w
bulbs from ahsupply.com. They work well on tanks that are a multiple of 24"
wide.
I have the parts on order to switch my 60 gallon planted tank from 6 T8 36W
bulbs to 2 96W compact flourescent bulbs. If anyone is interested in some high
quality ballasts for T8 bulbs let me know. The bulbs that I have are way past
their prime (although I think I have two high-CRI 36" bulbs as spares
somewhere), but the ballasts are in good shape. They are about a year old, I
bought them from Bulbman down near the stadiums.
alex
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