Wanted to get somemore "eggcrate" material for my tank at Home Depot. They ran out of the regular stuff. All they had was the chromed eggcrate. Would this be tank safe?? The chrome looks like and feels like plastic.
And it also distributes the weight of the rocks, so not just resting on one point or area.Those egg-crate lighting diffuser grids are great to put under substrate is you've got a lot of big stacked rocks in your tank. If a rock tips and falls, it would be very unlikely to blow out the bottom of your tank if you've got the plastic egg crate grid under there.