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"stalled tank"
Steve Dixon wrote some interesting notes about
"stalled" tanks. I am also interested in this subject,
since tanks certainly seem to go through some
mysterious cycles.
I share the same doubts he has about the alleleopathy
theory on stalled tanks: i.e. that the accumulation of
toxins secreted by the plants finally builds up to a point
where the plants inhibit ea/other's growth.
What if water changes occurred as normal? Stalling
can still occur. From observation alone, I have to
agree that it seems to be due to a lack of major
nutrients, N-P-K.
Now, on that subject:
Arizona Aquatic Gardens is selling "Aquatic Plant
Spikes" and Aquaplant tablets. The spikes seem to
NOT contain macronutrients. However, the tabs have
them in the ration 11-15-20.
Has anyone tried either or both of these? Some
manufacturer designed them for aquarium use.
However, the P level seems high to me.
I'd love to hear any testimonials or reviews out there.
Thanks,
Roxanne Bittman