Securing eggcrate on top of tank.

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I thought any fish would jump, if I end up going for a six-line wrasse they would especially jump too.

So do you have an open-top tank with no jumping problems?

By the way my FW planted tank had a school of 8 marble hatchetfish for the better part of a year, when the heat wave struck 5 of them jumped out the tiniest hole in the cover.