"Tank Janitors" are the critters (fish and invertebrates) that crawl and/or swim around your tank, cleaning up the crud (detritus, uneaten food, undesirable microalgae, etc.) that builds up in a saltwater aquarium, disrupting the biological balance and appearance. "Reef Tank Safe Janitors" do it without destroying your corals and other tank mates.
More: Reef Tank Safe Hermit Crabs may be the best investment you can make for your reef tank. They clean your tank 24/7 without harming your valuable corals.
More: Reef Safe Rock & Glass Cleaners Looking for something to get rid of all that algae that keeps showing up on your aquarium glass and the Live Rock in your reef tank? These critters are Reef Safe and will do a great job getting rid of that algae.
Photo by Larry Yarbray