Not to sure if rocks will be ok

[Brad123]

Hello all were I work they have a lot of rocks all over the site. Want to know if they will be OK to us

 

[Hufsa]

Put some strong vinegar or acid on them and see if they fizz. I would be concerned that they are limestone

 

[DaveWatkin]

I believe nitrate bottle 1 or ammonia bottle 2 from the API test kits can be used for an acid test.

Also, I'm sure I'll be corrected if wrong, most rocks will be fine, worst case they will increase you hardness over time but a weekly waterchange will reset this.

Although you should take into consideration the requirements of your livestock. Not all will handle changing parameters.

 

[Brad123]

Put some strong vinegar or acid on them and see if they fizz. I would be concerned that they are limestone

Cool I've got sprit of salt will give that a go.

I believe nitrate bottle 1 or ammonia bottle 2 from the API test kits can be used for an acid test.

Also, I'm sure I'll be corrected if wrong, most rocks will be fine, worst case they will increase you hardness over time but a weekly waterchange will reset this.

Although you should take into consideration the requirements of your livestock. Not all will handle changing parameters.

Thanks for the advice
Will be doing 50% water change once a week. The rock look like they come for the beach big round pebbles broken up.

 

[PARAGUAY]

Using the vinegar test can be inconclusive Tried it on rocks and it looked like no limestone but testing with the nitrate no 1as (@dave Watkin) fizzing clearly and visibily obvious. Rounded river or sea cobbles are generally safe