Hey everyone, So I live in a small apartment. I already have a 30 gallon tank in my bedroom. The only other tank I could cram into my space would have to have a footprint of about 40x30cm / 16x12in, but it could be quite high without a problem. So here's my plan. Tank and equipment: 67L: 40cm long, 30cm deep, 55cm high / 18gal: 16in long, 12in deep, 22in high Eheim classic 2211 canister filter w/ inline heater inside the DIY stand Stock: 3 dwarf puffers (male 1:2 ratio) some red cherry shrimps (from my other tank's exploding population) Because the tank will be so high, I would like to create multiple "floors" with low light plants at the very bottom, and some driftwood suction cupped to the back of the tank to create a second and third floor respectively at 1/3rd (and on the left) and 2/3rd (and on the right) of the tank's height. These driftwood would be home to epiphytes. Question: which plants would you recommend for both the low light bottom and the elevated driftwood? A second problem coming from the height of such a tank would be the cycling of water. I read that dwarf puffers don't like high currents. But I would like to be able to have water flowing through the whole tank so as to avoid dead spots. Maybe I could just have my filter intake very close to the bottom (but that sounds annoying because if I have shrimps I need a pre-filter sponge, which needs regular cleaning but would be all the way down). Question: how do you recommend I deal with water flow in this setup? Can you foresee anything else being a problem with this setup?