Stones and Rocks - Safety issues?

[Atom]

I found some rounded stones in my neighbor's flower bed/garden and was wondering it is safe to put in the aquarium?
They look very similar to these...


I don't know what the stones are, but I have boiled them (30 mins) and tried the vinegar test.

Anything else I should do to determine they aren't going to kill my fish?

Thanks.

[JUICE]

your good to go !! no worries

[Adz1]

your good to go !! no worries

agreed....

[AWW]

the only thing you have to be worried about in rocks is if it has a clay base and can decompose in the water, if it crumbles to dust, or if it has non- metomorphic red in it. It it has red in it it has high iron levels and it will screw things up

[Crazy_NDN]

only thing i would worry about is your neighbor getting pissed at you for stealing his rocks

[Atom]

the only thing you have to be worried about in rocks is if it has a clay base and can decompose in the water, if it crumbles to dust, or if it has non- metomorphic red in it. It it has red in it it has high iron levels and it will screw things up

I don't think this will happen, but I will look out for that for sure.

only thing i would worry about is your neighbor getting pissed at you for stealing his rocks

Technically they were scattered on my side of the yard, but I'm sure she won't notice 5 missing. Maybe I'll replace them with some other rocks I find but yeah I know what you mean.

[eternity302]

Return some pink or bright red rocks, so it's mroe noticeable to your neighbor =)

[Hammer]

those look fine.

[Atom]

So I set up my fishless tank yesterday and added the (boiled) rocks too.

This morning I woke up with a CLOUDY aquarium. Was this caused by the rocks?

Aside from the rocks I just have regular gravel (rinsed), live plants and a coconut cave in there. The water isn't brown/yellow and the cave was boiled so I don't think that is the culprit.

I left the filter off overnight.

[2wheelsx2]

Are you doing a fishless cycle with ammonia? Those stones are rounded from years and years (probably centuries) of being in a river and anything this can be leached is long gone in them. 100% sure they are safe, especially since you boiled them (in case they carried any live organisms).