Amazonian additives - The Planted Tank Forum
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post #1 of 4 (permalink) Old 07-03-2003, 02:06 AM Thread Starter
Algae Grower
Join Date: Apr 2003
Location: North Carolina
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I'm thinking of starting a new Amazonian tank and am intrigued by the idea of using a "blackwater conditioner" (eg Kent Black Water Expert). My question is - does this significantly impact the amount of light I will need? I am planing on about 3W/gallon and don't intend growing anything with significantly high light requirements.

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post #2 of 4 (permalink) Old 07-03-2003, 02:13 AM
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It will have very little effect on lighting requirements. Many of the black water conditioners contain peat extracts which may lower your PH a little, just be aware of that. You didn't say if you are using CO2, but the ph lowering effect could throw off the ph/kh/co2 relationship, of your not using co2, dont worry about it. You could always get around it by measuring co2 directly with a co2 test kit.



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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post #3 of 4 (permalink) Old 07-03-2003, 12:12 PM
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But at 3 wpg I would think that CO2 would be part of the setup.
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post #4 of 4 (permalink) Old 07-04-2003, 02:33 AM
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Rex brings up a worthy point... if you are having 3 wpg AND using the black water stuff, using CO2 would be tricky, but it could be done. You would basically have to start out with a low CO2 bubble rate and slightly increase, observing the fish and plants. Once you are getting satisfactory growth, that is where I would plateau the CO2. It would be tricky, but possible... Also, I don't think the black water stuff will affect how much light gets to your plants. Hope this helps!


Tank in transition! 55 gallons, hard water.
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