eBay
Fish R Fun FRF-355 Silver 7L Hexagonal Acrylic Aquarium - USED but in very good condition. Fish grew too big so needed a new tank!!
Excellent starter tank and with added light is great for kids room.
Have enclosed an additional spare filter also. 
Cant find instructions but straight forward and will attach a diagram for installation or instructions if found.
[FRF-355S]
Fish R Fun FRF-355 Silver 7L Hexagonal Acrylic Aquarium
Click to enlarge

Complete with filtration & lighting built into the hood.

Spare filter also included.


High quality all in one hexagonal acrylic aquarium with built in filter & fluorescent light. Ideal for the office or home. Child safe - complete system runs from one 12v AC adapter (supplied).


This aquarium has a multifunction hood and fitted fluorescent light (with on/off switch). Hood also incorporates a silent 12v water pump with advanced 3 stage Filtration System (Mechanical, Chemical & Biological): utlilising filter sponge, activated carbon & bio balls (all supplied) in the filter compartment.


Light System: LED (with on/off switch)
Filtration: Advanced (3-stage) filter built into hood
Dimensions: 21 x 18.2 x 36cm