Old Reef Rock Ok for Malawi Setup??

[jcm1229]

I have 20 pounds of Florida Reef Rock (limestone based). Can I / Should I use this in my Malawi setup??

The limestone would help buffer the ph, but it has mostly sharp jagged edges - definitely not smooth.

If not using it for display rock, would there be advantages for crushing it and using smaller chips as filter media??

Comments/Opinions??

Thanks!

[NickH]

Sure, why not? Don't worry about the jagged edges, African's are pretty nimble. If it's nice looking rock, it would be a shame to crush it all up...

[Deb2]

Should be fine. Just make sure anything that can die is dead, such as sponges or mushroom corals.