to be honest, I never really thought about it but, with all of the equipment in a small space the possibility is always there.
I installed a $9 grounding probe I picked up in a recent order from J & L. I just grounded my sump, not the display tank since it's just a holder of the water and nothing is submerged on the DT.
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130 Gal Community Planted Tank and a 250Gal Peninsula FOWLR
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