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I recently built a large sump for my mixed reef tank in my science classroom. I have a CPR CS100 overflow, 1" spa flex lines, and a reef run 5500 return pump. The overflow/sump input has a ball valve (soon to be replaced by a gate valve). The return line has a check valve just above the pump...

So, I decided to start a tank log. I have had this reef tank in my classroom for 5 years. Four times I have had to break the tank down, move it, and set it up again. This year I changed to a new school. Hopefully I have moved this tank for the last time! I also had a 75gal reef tank at home. I...

Aloha! I am setting up a sump for my 75 gallon mixed reef tank. Given the location of my tank and sump, I decided to go with Schedule 40 1" Spa Flex pvc hose. I have done a lot of research that says it glues into schedule 40 fittings like normal hard PVC. However, when I dry fit the parts, the...

I have a beautiful brittle star that needs a new home. This guy has learned how to fish! He requires regular direct feeding to keep your fish safe. I learned the hard way. I would prefer to move him out of my reef tank to a new home.