Quote:
Originally Posted by bode
In aquaria literature I've also read that plants aren't able to use light nonstop, thus long photoperiods being favorable to algae growth, since they are able to do so.
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I don't think this is true. Plants are able to use light nonstop for 8 hours or more, but not a lot more. Algae are far more opportunistic than plants are, so would be more likely to benefit from split lighting periods than would plants. The numbers I have read the most often are 8 - 10 hours for the plants, with no interruption.