I think I'd use gravel, sized like bm suggests or even larger (up to 1"). I think anything that would prefer smaller stuff, like pea gravel or sand, will spawn OK on the clay somewhere in the pond (their success % may be lower, but they're gonna have beau coup more chances). But fish that can't/won't spawn in clay, like SMB, would do better in larger gravel IIRC. Make sure it's round edged (ala creek- or bank-run, not crushed).

Brettski, those are undoubtedly the most secured snow saucers in the world.

The mud was bad, but you could have used that secret silicon spray lubricant from Clark Griswold's company. It always mixes well with saucers. \:D


"Live like you'll die tomorrow, but manage your grass like you'll live forever."
-S. M. Stirling
[Linked Image from i.pinimg.com]