Aquarium Automation: The Theiling Rollermat and Other Web-Filtering Technologies

The problem For the longest time, I have been trying to lengthen the maintenance interval for the filter socks on my 450-gallon system, which currently clog every two days. I tried eliminating filter socks completely for a period of time, but the sump got extremely messy and turned into a nitrate bank. The next option … [Read More]

Coral Catfish: Cute-Juvenile Syndrome with a Venomous Twist

A school of juvenile coral catfish (Plotosus lineatus) rolling and wriggling en masse along the ocean floor is among the more endearing sights one can behold in the marine realm. Not surprisingly, after seeing this phenomenon in nature or on video, many hobbyists are inspired to recreate it in their home aquaria. What’s more, individual … [Read More]

5 Types of Marine Fish that are Reef Safe with Caveats

When we say a marine fish is “reef safe,” we usually mean that it won’t eat the corals or other sessile invertebrates that we keep in reef systems. Using that definition, we can easily determine that, for example, the peaceful, planktivorous purple dartfish (Nemateleotris decora) is completely reef safe but the exquisite butterflyfish (Chaetodon austriacus), … [Read More]