These clear plastic trays will after time become discoloured and will need replacing we stock a range of sizes to suit all our aquariums. Standard trays will fit our Euro hoods. All standard sizes are aquarium sizes so condensation trays are smaller. Any condensation tray can be cut down to fit smaller aquariums or have holes etc cut in using a pair of scissors. Pleased note, at busy periods these items can take 3-4 weeks to produce.