I recently posted the mock up for my 37 litre tank which is 50x30x25. I have decided to upgrade the tank to a dennerle scapers tank 70 which is 70litres it has the same length as the existing set up and will allow more depth for the new scape in both width and height. I will be using the same filtosmart Thermo 100, and I will use the existing tropica substrate and sand as a bottom layer to the planted area. I plan on using tropica soil, granular and powdered to bed the scape into and plant. Hope fully with a 4 week schedule of daily to weekly water changes this will allow me to transfer the livestock, galaxy danios and amano shrimp, nerite sails in one day, I will save the existing tank water as well to also boost the system.