how much is too much - The Planted Tank Forum
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post #1 of 4 (permalink) Old 07-15-2003, 12:50 PM Thread Starter
Algae Grower
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I am curious about how much light it too much. I am getting a 70gal 48" tank and I have two 24" All Glass PC lights right now. (55W each) I wanted to get close to 2.5W/gal for the lighting, but I can't find a 48" light that is going to be around 40W so I was thinking of just getting the 48" all glass PC that is another two 55W bulbs. This would give me 220W for the 70, or just a hair over 3W/ I asking for trouble with this much light?

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post #2 of 4 (permalink) Old 07-15-2003, 02:27 PM
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If you also add CO2 and fertalizer you will be okay.

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post #3 of 4 (permalink) Old 07-15-2003, 02:35 PM Thread Starter
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Ok, good to hear. I do have a pressurized CO2 system on it and have a steady flourish and root tab diet for the plants once I get them.

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post #4 of 4 (permalink) Old 07-15-2003, 05:24 PM
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I got 220 watts of pc lighting over my 75 gal for roughly 3 wpg, and I'm thinking about adding some more. It really is difficult to have too much light if your fertilizing and adding CO2. The only drawback to too much light other than making sure the ferts are available is pruning more than you'd like.



75 gal heavily planted,50/50 Black beauty,Eco-complete substrate, Pressurised CO2 with solenoid, ph controller, AB Reactor 1000, 330 watts 9325K GE PC lighting,Ehiem Liquidoser, 2-Filstar xp3 canisters.
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