SPECIAL FEATURES INCLUDE :-The worlds thinnest weir boxStealth piping- invisable via the rear and rhrough the base of the aquariumrimless OPTIWHITE aquarium high polished and built with WACKER SILICONESTYLISH red FLOW piping and gate valve all pre cut for easy installation.FULL HYBRID glass/acrylic sump with adjustable chamber heightsmulti chamber sump with dedicated skimmer/reactor/refugium sectionspre filter sock chamber includedfilter socks includeddosing pump tube holders includedtesting probe holders includedtop up chamber includedauto top up float includedelectronic dry box includedfull coated metal stands with fast fix build system on all sizes from the 60/90&120 5CMX40CMX39CMthis is a beautifully build desktop aquarium with visable waterlevel viewer on the sideraised protective base with trim colorcoding.supplied with three rear chambers for prefilter sock chamber (included with sock),skimmer chamber and return pump chamber .The rear filter is built with the highest quality glass dividers (no plastic sections on this)*Skimmer and return pump NOT INCLUDED -