Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Just what I needed

This fit perfecty on my 50 gallon aquarium I got from petsmart.My 50 gallon has the center brace going across the middle so you will need 2 of these. These are high quality heavy glass and It came already assembled except for the stick on lid handle and the cut out plastic back that goes in the rear . What realy sets this apart from say your other standard covers is the bigger rear glass alowing you to use a twin tube lighting and still be able to open the front part without having to remove the light . This should also work for a 55 gallon setup as well . Pet solutions is where I got mine and they used fedex shipping . VERY important as they handle their packages better then say UPS , and glass is breakable . Mine came in perfect shape and well packed .