So I needed a big skimmer for my ongoing 1600 gallon system build. I had a great experience with my reef octopus Diablo skimmer on my last system so my DIY skimmer is based off of this proven design. The big issue with a skimmer of this size is cost and going with a DIY option will save a lot of money. I was looking for an alternative material for the skimmer body and decided on using an hdpe roto molded 60gallon tank. The cost is significantly less than acrylic or PVC. I found that inductor tanks come in all shapes and sizes and all I need to do is cut the bottom off the tank and turn it upside-down to get a great skimmer body. I have made some good progress in the big parts but I have a long ways to go before completion. Please let me know if you have any questions.