There's usually some calcium involved in high strength concretes. I was working on a project here at school and left some on my arm for a little too long... needless to say I won't be making that mistake EVER again. Anyway, when concrete is cured, the higher the moisture in the surrounding environment, the stronger your concrete will end up. Curing underwater is actually best. However, when kept in water that's low in calcium, calcium is leached from the concrete into the surrounding water, weakening the concrete. We loaded our curing tanks with lime powder, preventing the calcium from leaving the concrete. Anyway, after a good bit of time soaking in clean water (and multiple water changes) you should be safe to put concrete in a fish tank.
Brick in a tank?
- Thread starter Shack
- Start date
If it's an actual brick you're comparing to a cement block, yes. I'm not sure what goes into making bricks, but I've seen it done. I can assure you, there is a night and day difference between the red brick material and concrete. If it's a stained concrete, then the stain may affect a few things. I've not yet worked with concrete stain, but I'm sure there's someone on this site that has experience with it.
