UK River Rocks in a tropical tank?

[bigspizz]

Some rocks may contain lime on them. I had a few that had a small bit but didnt any harm anything.

Are you saying lime fizzes and the fizz test is not acurate?....Or just adding that rocks have lime, that does not fizz, or hurt fish, or matter? I am a little confused by this, sorry.

 

[akryden]

lime is what changes your ph, also it is what fizes. so lime in large amounts is not good but a small amount may not hurt tank. so basicly scratch the rock then pour vineger on it, if it fizes toss it out. no fiz and your safe, good luck.

 

[Ransom]

Well i tested an put the rocks in

they look much better that the pic's

i am probably the worst picture taker ever.

anyway heres my current tank.