Your substrate preference, the one that would be readily available to anyone. And tell about that crazy substate where the uro's can dig and bore though.... it a silty sand? or sandysilt? does it contain traces of clay? it is not primarily clay i can see that in the pics, but could it be a clayey silt, i'm sure it's not a silty clay, how coarse is it , is it very fine?...it doesn't look fine. and what is the moisture level? I ask all this as I am a geotechnical technologist for a consulting engineering firm and i have access to various solis, so if it is well idenified to me, i can (hopefully) create the same amazing substrate. I have also found that sand is quite dusty especialy the fine playsand....how coarse can sand be for them...a small gravely sand...gavel with small cobles...a cobley gravel....starit cobbles and rock? well graded, gap graded, uniformily graded?



Nywayz, sorry for the long post. Any help would be appreciated.

~Chris~

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