Hi, starting this build thread to keep track of my progress and get people’s input. I downgraded my 40g cube and sump I’ve had but neglected for 10 years, for this AIO in the hopes that it’ll be easier to manage and the fresh start will motivate me to take better care of it. I had a colonial hydroid problem so spent the last two weeks picking them off one by one before I transferred the LR to the new tank. I also had an acetabularia algae outbreak so similarly scraped those off the LR.