The Malawi tank is 120cm x 50cm x 70cm / 48" x 20" x 28". My future plans for the malawi is to have an 8ft x 2ft x 2ft with a sump. But thats way off, probabley a year away. I then want to turn the malawi tank above into a planted tank. Ive done all my learning and mistakes on the 155 ltr tank and im no where near where i want to be with it really but when im happy that im a planted aquarist god then thats when im going to go and plant up the larger tank.