do these rocks look safe for my tank?

[sumthin fishy]

just take a 5 gal bucket fill with water, test initial PH GH and KH put 1 rock in, preferably with some movement (air stone would work), wait a few days and test again. compare results. Honestly, I've never really played with GH and KH, but am starting to read up on it since the wife wants shellies. And I still feel bad for being an arse hat

 

[petluvr]

I think you will be fine.

 

[bobsaget]

Well I'm nervous now. I don't want to alter my water. I'm not sure how much fizzing is actually bad

 

[petluvr]

I wouldn't worry I have done this a million times and never had an issue. If it worries you I would suggest buying a good liquid test kit and test to set your mind and ease.

 

[HumboldtGuy13]

The river rocks I find for my tank are always soaked in bleach and water for a while and rinsed before they hit my tank. IMO you should spend the $4 for a gallon of vinegar before putting the rocks in your tank. It could save you some heartache. I even pour the vinegar back in the bottle for subsequent tests, as long as I don't get any bubbles from the test.

 

[Dr. Aqua]

Soap should not be used to clean aquarium accessories.

 

[ffmurray]

skip the soap, boil them!

 

[petluvr]

skip the soap, boil them!

Boiling can cause hot spots and explosions.....did you put these in?