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Bat Guano
>I just put fish into a new "low tech" tank that I set up using potting soil,
>and cuttings from my "high tech" tank. I then read the bag the soil came in,
>and it is all organic, including the bat guano and chopped worms. Anyone had
>luck with bat guano and the like in their substrate? I don't like killing
>fish.
I don't know about killing fish, but Diana Walstead recommends against soil
substrates enriched with earthworm castings (worm guano, not cut up
worms). From memory only - her reason was that such rich soil fosters
algae, not that it's harmful to fish health.
Ellen O'Connell
Parker, CO
mailto:oconnel4 at ix_netcom.com
http://www.rottrescue.com/