Is the tank in the picture your 20L? I've moved my 30gal back and forth to college and back before. Are you just moving it around your place? What I did with my tank is took the plants out, with the exception of ground cover plants, caught all of the fish, bagged them, put them in a cooler for the car ride home, drained as much of the current water into 5 gallon buckets as I could, put lids on the buckets. I also put the biological media from my filter in one of the buckets to keep it wet and alive. I then took the take off the stand, put it in the back of the car, then put the stand in the car, drove 4 hrs home, then immediately began reassembling everything. If you're just moving it from one place to another within the same house/apt/whatever, I'd just empty water into buckets, remove the plants, you can float them in one of the buckets, catch the fish, you can keep them in one of the other buckets temporarily. I would hook up a filter to that bucket, just so water stays moving and clean. Then empty as much of the water out as you can, move the tank to the new location, and reassemble everything, add your water back, make sure temp and such is good, then add the fish back. Unless you have super sensitive fish, it shouldn't be a problem to move them. Like I said, I have moved my established tank a couple times 4hrs home and 4hrs back to school and have had no issues. Feel free to ask any specific questions you might have.