stones for my tank

[cbheternal]

I have alot of slate strips. 2 inch X 6 inch. some shorter some longer. anyway. these stones were in a Saltwater tank 40+ years ago. they were my mothers. can i use them in my 10L Freshwater tank. i would like to build a new cave for my Pleco. Any info and advice would be greatly appreciated.

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[cbheternal]

I have alot of slate strips. 2 inch X 6 inch. some shorter some longer. anyway. these stones were in a Saltwater tank 40+ years ago. they were my mothers. can i use them in my 10L Freshwater tank. i would like to build a new cave for my Pleco. Any info and advice would be greatly appreciated.

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now im not sure. Slate. or Shale.

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[cinnamaldehyde]

Pour vinegar on them. If it fizzes, no, you can't use them. If it does nothing, yes, you can use them.

Slate = yes. Shale = I'm not sure but someone else should pipe in.

 

[cbheternal]

ok then. ill do the vinegar test. i guess i should figure out what kind of stone it is.

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[cbheternal]

did a quick check. and slate is a type of shale. nut actual shale is comprised of silt. where slate is mostly sand ( quartz ) and other minerals

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[cbheternal]

i was mostly concerned about the stone absorbing salt from being in a saltwater tank. beit 40 yrs ago. been sitting an a box in the garage since i can remember. and im 34.

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