Question What exactly is the difference between a “sump” and a “refugium” (assuming there is a difference)? These are terms I didn’t hear in my 30-plus years as a freshwater aquarist, but I’ve heard them numerous times since starting my…
What Gives with that Marine Fish that Never Eats?
I’ve had this fish in my aquarium for months now and it’s as fat and happy as can be, yet I’ve never actually seen it consume any of the food’s I’ve offered. How on earth is it getting enough to…
Sand-sifting Starfish: A Job (too) Well Done!
If you’ve ever shopped for a marine aquarium cleanup crew, you’ve probably noticed that these packages often include so-called sand-sifting starfish—rather bland-colored, burrowing stars of the genus Astropecten that can reach about a foot in diameter. As their common name…
