Covers pose their own issues. Lack of evaporation and gas exchange. Cords need holes. Lights. Removing.
I made a canopy "surround". Sides only. Most fish dont jump straight up but would be on some angle. My surround is about 8" on all sides. Have not lost a fish to the carpet since. Applied this to my old 20 g first when I lost my neon and firefish in a single evening.
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