Dear people,
A view months ago, I started a tank filled with plants. Unfortunately I had dispose of this tank, because of a leak. I bought a new one. And now we are a couple months further.
The size of the tank is 125x50x50(cm) --> 312 Liter
Light: 154Watt (2x T5 54W and 1x T8 34 W) (the T5...