I thought I would share this great tank design with you...A friend of mine makes these and anyone who makes their own tanks will find this one really easy to put together.. I have it as a split tank, and as a single (pictured here).... The split simply has a piece in the middle of the main front section that isn't glued to the base, leaving a couple of mil for the water to circulate throughout the whole unit...
I like that the heater and filter is hidden in the back.. The back section is sectioned into three compartments. The middle houses a large square filter sponge, with a heater placed on one side and on the other a simple air stone in a pipe which enters into the main section at front, providing very effective and gentle filtration system, as the water circulates out the pipe opening and around to a little section that has been cut away from the glass (and smoothed to ensure no sharp edges) allowing it to go through to the back section where the water is warmed and filtered! A very simple set up that works a charm!