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Guppy fry are starting to get their colors | 11 comments (11 topical, editorial, 0 hidden)

While there may be slower growth because of (none / 0) (#11)
by unclescott on Fri Dec 19, 2003 at 07:53:17 PM PST

pheremones released by other fish, plain old nitrates from fish waste will slow down efficient use of food and oxygen too. Both of those problems can in part be "solved" by more water changes. Like we need to do more of those this time of year. ;)

According to Diana Walsteadt, some plants, including algae, also produce chemicals which inhibit the growth of specific other plants. I believe that is called Allelopathy and the chemicals are sometimes refered to as allelochemicals - although that terms isn't even in our Webster's New World College Dictionary. :)

She spends a whole chapter of her book (the plant book without photos of plants) on that topic and has a lot of info on the phenomenon.

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Guppy fry are starting to get their colors | 11 comments (11 topical, 0 editorial, 0 hidden)

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