Rocks

[paudie22]

i have some beautiful rocks out my back garden and was wondering could i add them to my tank to make a cave??

 

[WILDER]

What type of rocks are they as some can alter ph.
You will need to sterlise them in boiling water.

 

[paudie22]

What type of rocks are they as some can alter ph.
You will need to sterlise them in boiling water.

i cudnt tell ya tink they shale rock im not sure but thought id have steep them in water for bout a day anyway

 

[WILDER]

Shale fine then.
http/www.practicalfishkeeping.co.uk/pfk/...g.php?blogid=86

 

[CrashingWaves]

Generally the harder the rock, the safer. Now this isn't always the case but it seems to go that way.

Anyway, welcome to the forum

God Bless,
Joshua

 

[rabbut]

Hi,
to the forum. To check if a rock is saft to add to a tank, you can carry out a vinigar drop test on it. This involves putting a small drop of vinigar on the rock. If it fizzes, the rock should not be placed in the tank. If the drop rolls off, then the rock is safe to add, wash thuroughly, and, where possible, boil in water to sterilise

HTH
rabbut

 

[dthoffsett]

Hi,
to the forum. To check if a rock is saft to add to a tank, you can carry out a vinigar drop test on it. This involves putting a small drop of vinigar on the rock. If it fizzes, the rock should not be placed in the tank. If the drop rolls off, then the rock is safe to add, wash thuroughly, and, where possible, boil in water to sterilise

HTH
rabbut

I agree to a certain extent, the "vinegar test" only checks to see if calcium is present. If it fizzes, there is calcium present in the rock (think vinegar and baking soda), calcium can raise the PH and KH of your water. Now for people keeping softwater or "standard" community fish, you'll want to avoid rocks containing calcium. However, hard water species (African Cichlids are most often thought of), rocks that buffer are considered an advantage. What you don't want in any tank are rocks that contain metal deposits. The-Wolf wrote an excellent article on rocks for the aquarium.
[URL="http/www.fishforums.net/content/Tropical-Chit-Chat/55806/Rocks-For-Use-In-The-Aquarium/"]http/www.fishforums.net/content/Tropical...n-The-Aquarium/[/URL]