Silicone
Hey crabs!
Maybe do a long test on the silicone in water. I remember looking at Piecies pets big tank not that long ago and over 60% of the rocks that they siliconed together were falling off. These rocks were attached to them selves, as well as to the glass. With this much work going in to this system it would be horrendous to have something fail and need to be re-set up.
Just a thought
Cheers!
Geoff
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