Update !60 gallon freshwater aquarium! Need tips!

60 gallon fish tank made from scratch. Any tips would be appreciated as I’m new to the hobby. I work for glass company and can easily get glass so I decided to make a fish tank out of one. Main goal is to get discus and angel fish one day but don’t know what else I may need to get it set up or if I have the proper set up. Sand and eco complete substrate with penguin filter. No heater yet but working on getting one

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