Astraea Snails Make Short Work of Algae

This past year, I rediscovered how great an army of snails can be. We go pretty light on cleanup crews in general. For example, there really aren’t any hermit crabs to speak of in our systems. In 5,000 gallons of…

4 Crabby Caveats to Keeping Clibanarius tricolor

Clibanarius tricolor, the blue-legged hermit crab, is very commonly introduced to marine aquaria, either in conspecific groups or as part of a multi-species “reef janitor” package or “cleanup crew” (aka “CUC” for those who just can’t get enough of those…

What Gives When Herbivores Won’t Graze Nuisance Algae?

The practice of adding herbivorous fish and/or invertebrate species to marine aquariums for the purpose of nuisance algae control is quite commonplace. Hence the popularity of those herbivore packages known in hobby parlance as “cleanup crews,” or CUCs. But almost…

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…

5 Ways Hobbyists Misuse Grazing Marine Snails

在海洋水族馆可用的所有迷人无脊椎动物中,放牧的蜗牛也许是最滥用的。我们经常将它们像对待消耗的小割草机一样,将它们放在我们的坦克中,以明确的目的是防止或消除藻类和…

Does the Emerald Crab Earn Its Algae-Eating, Reef-Safe Reputation?

Among the various and sundry marine life commonly sold to aquarium hobbyists for utilitarian purposes is the emerald crab (Mithraculus sculptus). Oft touted for its propensity to gobble up bubble algae and other irksome algal forms, M. sculptus has become…

5 Common Reasons Leather Corals Refuse to Expand

The soft coral species commonly known as leather corals (various and sundry Sarcophyton, Lobophytum, Sinularia, and Alcyonium species among others) are often among the first invertebrates budding reef hobbyists select for their systems—and with good reason. The leather corals, so…

Consider These 6 Points Before Buying a Marine Aquarium Cleanup Crew

Marine aquarium cleanup crews (CUC)—those combo packs of various snails, crabs, and echinoderms sold for the purpose of algae control and detritus elimination—can serve an excellent utilitarian function in a saltwater system. What’s more, in addition to the janitorial duties…