DIY Acrylic Refugium
Here is a photo of a small (4" X 6" X 8" high) acrylic Hang On Tank refugium with Mangrove seedlings, being used to reduce nitrates, phosphates and other toxins in 55g saltwater tank. This refugium can be hung anywhere on the outside of a tank or sump. You can also drill some holes in it and hang it on the inside of a tank or sump.
