Could I put these in my tank?

[Rerram]

They are hand carved marble sculptures my dad got in Bahrain or Korea. I think they would look cool in the tank and give something for my betta to swim around and such. I don't see why they shouldn't be able to if I clean them, I just wanted to make sure before I did.

[cjconcepcion]

as long as they dont have any gloss or anything on them they should be fine, just rinse them in hot water before you put them in just to be safe

[Olympia]

Marble will raise hardness and pH I believe. Not good.
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[Silverfang]

depending on what they are made of, they can alter Ph, etc

[strudle]

If you have an extra tank/water change tank, I would clean them, leave them in a tank with no fish for a couple of days, and check the pH/hardness of the water. Of course, check it before, and then after they've been in there for a while. :)