I just wanted to share my experience with refugiums in my aquarium. I didn't realize how important they were until I started seeing the positive changes in my tank. Not only do they harbor so much life, but they're also great for removing excess nutrients.
I love how they're so easy to set up - you can use sand, mud, or even algae to create one. It's like having a little ecosystem within your aquarium.
If you're not using a refugium already, I highly recommend giving it a try. You'll be surprised at how much it can improve the health and vitality of your aquatic pets!
Happy tank keeping!