POLL: What is the wpg rating for this tank? - The Planted Tank Forum
View Poll Results: How many wpg?
less than 3 1 20.00%
about 3 0 0%
between 3 and 4 1 20.00%
Not sure, but definitely on the high side (>4) 3 60.00%
Voters: 5. You may not vote on this poll

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post #1 of 2 (permalink) Old 02-06-2004, 01:41 AM Thread Starter
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^iMp^'s Avatar
Join Date: Oct 2003
Location: Rhode Island
Posts: 423
I'm having difficulty determining the "wpg" for this paludarium tank. I'd like to run a poll to get an idea of what you all think.

Tank: 20g tall
Setup: Paludarium
Lighting: JBJ 65w PC w/ reflector
Additional: There is only ~8 gallons of water under lighting (and 4 more in a sump). There is 10 inches between the lights and the water surface. The water is 6-8" deep.
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post #2 of 2 (permalink) Old 02-06-2004, 03:45 PM
Are these real?
Wasserpest's Avatar
Join Date: Jun 2003
Location: Monterey, CA
Posts: 15,523
I think it is much higher than you think, reduced only by emerse leaves shading the water part. If no leaves are obstructing the lights, I think you can count on about 65W/8gal=8W/gal. As long as the distance from the lights isn't more than the length of the light, there is no reduction in effective wattage, underneath the center of the lamp. There will be some reduction on the sides.

I would put lots of plants in it... submerse, emerse, and floating ones like Ceradopteris, Salvinia, Pistia... to get a grip on the algae.
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