Is this rock ok to use without issues???

Mark Keetch

Member
Joined
8 Nov 2019
Messages
348
Location
Milton Keynes
So I managed to score 3 big pieces of rock for nada. Plan is to break them down into smaller pieces and use with the Seiryu stone I have for an Iwagumi tank.

Question is.....is the rock safe to use? I chipped away at the rock and poured vinegar on it which then started to slightly fizz. I know this alters the hardness and PH of the water. But is it still ok to use as long as the PH settles and stabilises?


20200521_154505.jpg


20200521_154511.jpg


20200521_154518.jpg


20200521_154529.jpg


20200521_154535.jpg
 

Kezzab

Member
Joined
18 Jan 2016
Messages
1,202
Location
Carlisle
Lol! I'd literally do nothing with it other than pick off the moss and wash off any obvious muck unless you've reason to believe it's contaminated somehow. But maybe i'm a bit cavalier.

Otherwise, yes to your bucket test. At least it will give you some indication of the size of effect, if any.
 

dw1305

Expert
Joined
7 Apr 2008
Messages
10,964
Location
nr Bath
Hi all,
Looks like limestone.
I think it looks like Lias limestone, which would be a <"local rock to you">.
I know this alters the hardness and PH of the water.
It will only make your water harder if it isn't already saturated with CaCO3.
I'd literally do nothing with it other than pick off the moss and wash off any obvious muck
Same for me.

If your tap water is anywhere about 18dKH then the <"rocks won't add to that">, the water is already saturated with Ca++ and HCO3- ions.

cheers Darrel
 

Mark Keetch

Member
Joined
8 Nov 2019
Messages
348
Location
Milton Keynes
Thanks guys. I think I'll bleach clean it just to be on the safe side. I'll probably end up just putting loads of it in the tank and then monitor as the early days and weeks of the start up pass by.

Good thing is, I've broke the 3 pieces down to quite a few pieces now. Some nice shapes come out of it. Makes it easier to scape and clean too

IMG_20200521_203801.jpg
 

Similar threads

Top