I would like to share with you all a float switch bracket that I made to use with RA. The idea was to build something usefull, flexible and reliable, something that would not fall into water easily.
I made this 3D project using TinkerCad (https://tinkercad.com/) and printed it using a local printer that I found using 3dHub service (http://www.3dhubs.com). It costed 10 bucks, and we can use other online services like shapeways, sculpteo, etc
It was designed for the two pieces to be fixed in each other and in the aquarium glass using plastic screws.



Of course there are alternatives (ReefKeeper Float Switch, for instance).. but it was expensive to me (cost + shipment) and it not fit my display properly.
Next step is to create a proper brancket for Water Level's pipe.
The 3D project is attached.
Rafa