My tank looks like this now. This is a moulded tank from RS Electrical and its top cap is gumed as you can see in the pic. There is a window at the top and it is about 0.7feet * 1.8feet in length.
Today many of the aquarium shopkeepers told me that we cant make this tank a planted aquarium. This is why I wanted to ask with you guys, is it really not possible to do a low tech tank with this kind of molded aquarium?