Ocean rocks in freshwater.

[Dudzy]

Hello all.
I have a few ocean rocks that have been in my garden and pond for about 5 years now and I was wondering whether it would cause any harm if I put them in my tank?



Cheers.

 

[BushFishRox]

if they have been in freshwater for 5 years I dont see them being a problem anymore.

 

[Dudzy]

if they have been in freshwater for 5 years I dont see them being a problem anymore.

Cheers, that's what I was thinking but just wanted to be sure.

 

[johnuskglass]

Boil them first just to be sure- it's worked well for me.

 

[Dudzy]

I boiled them after taking them out of the pond.

 

[Dan F]

If they are limestone or dead coral rocks, they will affect pH (good for Africans).

If they are igneous rocks they shouldn't affect water chemistry.

 

[K626]

 

[Fish Eat Fish]

if its old coral you could sell it as base rock to a reefer! reef rock is very $$

 

[Dudzy]

If they are limestone or dead coral rocks, they will affect pH (good for Africans).

If they are igneous rocks they shouldn't affect water chemistry.

They are Igneous rocks.
So hopefully this should be fine.