Wow! Very Nice AL!
I especially like the way the shells are built into the cake. That will make some really nice homes for some of your critters.
Looks like that small ball would fit right over the top of the cake.
:LOL: Yeah yours came in bro!! I'll shoot you a PM shortly
Sure I can.... What's the "vinegar test"?
pour some vinegar on it to see if it fizzes
Oh ok... I don't think they would be hard to "make" but I think the "hard" part would be the "chemical" part of it. I don't know or claim to know all the details but it's not just a "masonry" mix like we would use on our porch/side walks. It's designed for the reef balls and is much more "inert" due to this advancement. I'll do the "Fizz-Test" when I get home tonight and let you know.
yeppers... my thoughts are it probably has a similar make up to the homemade live rock that was popular a few years back. there is a nice formula for this on GARF's site. Here is a DIY thread at seahorse.org
Diy Live Rock - Seahorse.org
Totally safe for aquarium use after curing...
Am I correct in assuming the "reaction" you were anticipating would be more of foamy milky fizzing?