The Planted Tank Forum - View Single Post - How to keep my 20H going outside?
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Old 07-07-2012, 02:26 PM   #11
Planted Tank Obsessed
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Plants basically need 3 things to survive, limit one and you will slow/stop plant growth and create favorable conditions for algae. Your basin has high light and access to far greater amounts of co2 than inside a home. For this reason, it is essential to ensure that proper nutrient uptake is met by the plants.

If plants can't grow because they are short on 1 limited nutrient, then algae is likely to be the one to use the rest of the available resources.
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