Allelopathy has never been shown to occur in any natural aquatic system to date.
You need to be careful when looking at research that suggest ground extract chemicals are able to inhibit other organisms, then suggest that these same ground up plant extracts act and secrete this same ground up cocktail in natural systems..................
A small concentrated test well that's maybe 1 ml in volume is hardly similar to your tank, the lake or any natural system.
A simple control is using activated carbon to remove any allelopathic compounds. If you suspect that algae is controlled, or other plants are inhibited, then you should see algae grow and the other plants grow with the Activated carbon use, with all things being relatively equal between the treatments.
Aquarist can and have done this for many years already............and there's no effect, actually algae growth is less and more plant growth of both species of interest.
Don't believe me?
Try the test your self.
Find some support that agrees with your contention that allelopathy exists in a natural system. Researchers know it's never been shown(at least not yet)...........aquarist get confused and misled.........and keep bringing it up............
Purigen also does a similar thing as activated carbon.
Regards,
Tom Barr
