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Re: substrate recipes
In a message dated 10/30/1998 4:01:11 PM Eastern Standard Time, karen randall
writes:
> 3. Mix it with the bottom 1/3 of your 1-3mm non-calcium carbonate bearing
> gravel
> 4. Cap with 1/3 well washed PLAIN non-calcium carbonate bearing gravel
> (total depth at least 3")
i must have missed something. what's the difference with the carbonate
bearing gravel? what is the harm of carbonate gravel?
tsuh yang chen, nyc