I am making some plans starting a tank with your tank dimmensions, only a little bit higher (40cm high).
I find it somewhat difficult to decide for lightning for this tank size, do you still running the 70w HQI or have you changed your light setup?
Any suggestions for what i should use? Something hanging from the seiling i think would look Nice. The tank is going to be placed by a window so i can let it have some sunlight if i want.