Hid my air stones

[houie925]

I believe the rocks themselves are made of red glass

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If you're concerned break one and find out.

 

[Inglorious]

Good idea, I'd like to see it in action

 

[andyroo]

So- it's been a month, how's it look?
Do the beads make the bubbles coalesce into larger, lumpier bubbles?

 

[fishlover14]

great idea