Is This Safe To Put In Tank?

[GreenA]

Hello everyone,

I have been for a walk today and I found lovely slate stone at the river bank that I collected as I thought it would look nice in my tank. However, I collected it at the mouth of the river so the water is really quite salty. My question is, are slate stones safe for fish? I read somewhere that some stones cannot be used for tanks?! If they are good to use, how would I have to treat them prior to adding them into the tank? Boil them?

Thanks in advance.

 

[fluttermoth]

As long as the stones have no metallic veins in them, they're all 'safe', the only problem you can get with them is if they have a lot of chalk or lime in them it can affect your pH and hardness. Slate is quite safe and won't affect your water at all.

Don't boil stones; first of all there's no need, and secondly, if there are any trapped air pockets in them they can explode

Just pour boiling water over them and give them a good scrub, and then let them dry completely and they'll be safe to use

 

[GreenA]

Cool, I'll have another good look at them and do what you recommended. Thanks for your help!