Would a 3 inch slice of Agate stone affect much the water in a 10 gallon?I keep finding yes' and no's about putting this type of rock in the fishtank.Has anyone been usig it for a considerable period and can give me more info?
I'm also gona take some of the bladder snails in my aquarium and put them in a cup with the stone ,to see if there is any copper......if there is......how much time till they die?does it happen fast ,or must you wait for weeks?
even dyed agate should be almost neutral to the water, used metals or metal irons should not solve much in aquarium water. Green agate is usually dyed with iron. So it should be save to use in the tank. Lilac/pink colors are achieved with manganese and (unnatural) brown colors with cobalt nitrate, these colors I'd avoid in my tank just to be sure.
We are not evil, because we do evil things. We do evil things, because we are evil!
(I“m sorry for my poor English, as you can see, I“m not a native speaker)
I haven't heard about artificially dyed agate before, so that's kinda interesting.
If it's natural agate, it's basically the same stuff as quartz, and won't affect your tank. There's a slight possibility the 'rind' may be carbonate, but it's small enough that even that probably won't affect your water chemistry.
don't waste your time acid testing the agate (though, maybe the rind) - it won't react.