Re: [AGA-Member] Possibilities of Sozo Haishoku

["Tomoko Schum" <tomokoschum@knology.net>]

>> But one thing that he said is "news" for me - He said
that there's a time limit for an aquarium and at some point
one has to replace the substrate and "renew" the tank. I
thought that a reasonable substrate runs out of nutrients
(except iron) in about a year or so however it should still
absorb some nutrients from the water and my impression was
that water column is the king as far as fertilization so no
need to care so much about substrate anyway.<<

When it comes to fertilization, ADA's method is quite
different from the popular approach among AGA members.  You
might have noticed from the data sections in their articles
that ADA keeps the water column very lean.

Tomoko


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