oase pond vacuum muck attachment

I use this to clean the muck from the pond. It goes between the rocks well and doesn't allow small rocks (or fish) to get sucked up. I think it works better than the one that comes with the oase... I used duct tape to line the inside tube on the print for a tight fit to the vacuum tube. (I was worried about making this thing too small, so I fudged the dimensions up slightly. A mistake in hindsight. I recomment that you use duct tape, or scale the object .98-.99.

When I print my next one I'll try and fix this.