water flow through raft system.

[davidstcldfl]

I actually decided not to touch this one with a 10 foot pole yesterday (this morning before bed) when I saw it!

Just remember, if your fish are alive and are not gasping for air at the top, there is AT LEAST enough dissolved oxygen for the plants and bacteria because the fish have a higher requirement for life than these DO. (see what I did there?)

....you used a 12 foot pole, with a feather attached to the end...