[sicklidman]

I found a bunch of these old glazed bricks, and was wanting to put them in my breeding tanks. Just wandering if thy would hurt anything. I would say that the bricks are at least 40 to 50 years old. Just thought that I wold get some thoughts before I spent the time cleaning them. Thanks in advance.

 

[Ispintechno]

What does the "glazed" mean? Are they coated? The look like they would be fine fish attractors, not the prettiest but totally functional.
I can't give you the green light but I bet if you went to one those rock cory places that sell rock (or call one up) they could tell you what is "pond safe" for rocks and stone. Most things are but some will change your water chemistry and that could be distrasterous.
If brick is safe (and I would imagine it is) I'd boil it somehow or soak it in the tub then throw it in the oven for an hour to sterilize it.

 

[Boomr99]

sicklidman, just wondering if you ever put those bricks in your tank? How do they look?