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Re: [APD] Sources of DIY Material

well laterite is high in iron non inert. in fact almost all the plant 
substrates carry an array of the minerals and arent inert, but the 
sharpness, thats a definite no no

Wise, Nicholas wrote:

>>Black Beauty sand has sharp edges that have been known to be 
>>hazard to fish. 
>>Here's one post on APD
>>. I know cichlid keepers who have lost fish by using it. 
>> Liz
>Add that to the fact that it is slag and as such is not inert and I
>would avoid it all together.
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