[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[APD] Re: theory behind algae control
> But to come back to the original question: the idea would be, like Roger
> Miller says, to select a window of conditions. Unther those conditions
> plants are better competitors than algae.
To be perfectly clear about this, I don't think that competition --
particularly for nutrients -- has any impact on algae control.
As you pointed out, our common nutrient levels are so high as to make
competition irrelevant. It is common for aquarium water to have CO2
concentrations, phosphate concentrations and sometimes potassium
concentrations 2 or 3 orders of magnitude higher than normal for natural
water. We usually maintain all other nutrients at comfortably high levels.
There is no possibility of competition when the table is so lavishly set.
The "window" of conditions is set primarily by the match between the
conditions provided in an aquarium and the conditions that algae are
specialized for. A planktonic species that is adapted to grow under low-CO2
conditions and to live under alternately very bright and moderately dark
conditions as it circulates in the water column may simply fail to survive if
placed in aquarium conditions with high CO2 and continual 2-3 watts/gallon of
lighting. It has nothing to do with competition; it just isn't the
environment that the algae is "designed" for.
Aquatic-Plants mailing list
Aquatic-Plants at actwin_com