if your wave front doesnt have a sump which thats what it sounds like since your talking about sliding it. I wouldnt slide it even with just 6" of water in it it wasnt designed for moving weights and force.
Id go buy a couple 20 G rubbermaid containers for the rock and fish toss the sand. drain the wave tank move to temp location, put fish and rock back in that and then you can setup the new tank properly taking your time to not forget anything. transfer livestock over to new tank.
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250G DD LED SPS R.I.P.
180G LED SPS
80"x36". 300G custom build
Owner of Mountain Ridge Heating and Gas
Class A gas fitter, HVAC
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