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sb483 · 01-07-2007, 01:14 PM

In the long term, however, you might expect to have to empty the tank & start over after one or two years when injecting CO2 - plants release alleochemicals into the soil (from Diana's book), which normally get decomposed by bacteria, but with CO2 injection they accumulate faster than bacteria can break them up. Enough alleochemicals in the soil can prevent further plant growth, which leads to algae taking over the tank.

However if you're keeping the tank for only one or two years anyway, then none of this matters.

01-07-2007, 01:14 PM	#3 (permalink)
sb483 Senior Member Join Date: May 2006 Posts: 184 iTrader Ratings: 0 Plant Points: 22135	In the long term, however, you might expect to have to empty the tank & start over after one or two years when injecting CO2 - plants release alleochemicals into the soil (from Diana's book), which normally get decomposed by bacteria, but with CO2 injection they accumulate faster than bacteria can break them up. Enough alleochemicals in the soil can prevent further plant growth, which leads to algae taking over the tank. However if you're keeping the tank for only one or two years anyway, then none of this matters.