[APD] More About Dirty Bottoms

["S. Hieber" <shieber at yahoo_com>]

Some time ago there was a discussion about substrates. I suggested that the kind of substrate did not matter much so long as you fed ferts into the water column. A number of commercially available substrates have ferts added to them.
 
Tropic has done some testing and come out with a few new products, including an enriched substrate to be used as an underlayment in a planted aquarium.
 
Tropic has some info on it here:
 
http://www.tropica.com/pdf/aquacare/forhandler_guide_uk_web.pdf

I don't know about comparisons with non-enriched substrates in tanks using ferts added to the water column or comparisons with soil underlayment tanks (a la Walstad) -- those conditions are not specifically addressed in the info in the link above. I hope to discuss this with Tropica's Troels Andersen during the AGA Convention.
 
Besides the substrate, Tropica also has come out with macros.  I know the macros are available at BigAlsOnline.com. Anyone know where else any of these items are available in the USA? How about the substrate?
 
sh
 
* * * * * * * * * 
The hotel has extended  the deadline to Oct 12 for getting the special AGA Convention room rate!
 
Only 3 or fewer seats still available for the Field Trip!
 
Learn about the Aquatic Gardeners Association Convention at 
http://www.aquatic-gardeners.org/convention.html 
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