Hello everyone, I found a 56 gallon custom acrylic tank for free a few blocks away. The story goes like this: I’m walking my dog, and I see a free tank. I pick the tank up. It is 56 gallons, from the tank calculator in MFK. I carry the tank 4 blocks back to my house. My mom see’s it and she’s like “WHAT THE HELL DID YOU BRING BACK! OUR HOUSE IS ALREADY CRAMMED TO THE BRIM WITH PETS!” My dad’s like calm down, and we convince her to keep the tank. I just need help figuring the whole tank out. The filtration is the key. I’m guessing it had a sump, because there is a bulkhead in the top left. In the top right, there is a little box. Take a look. Also, the dimensions are 48”x15”x18”.









