Mr. Gardener wrote:
On Thu, 02 Mar 2006 21:03:58 GMT, Altum wrote:


robert.hhill wrote:

Does anybody know---will chemical filtering - i.e., activated charcoal -
remove Excel from the water?

Seachem says you can use activated carbon with Excel.


How's 'bout other plant fertilizers, iron, potassium, traces - do they
also escape adsorption by filter carbon?

My plants grow fine with or without carbon in the filter. There's
probably some adsorption of chelated iron but it doesn't seem to matter
much. NPK and traces aren't adsorbed.

--
Put the word aquaria in the subject to reply.
Did you read the FAQ? http://faq.thekrib.com