Arrow Crab Glass Cleaners High light and flow is

High light and flow is a MUST for this coral

With just a couple small corals the amount of elements that will be consumed can be replenished by water changes

For aquariums from 40 to 500 liters (10 to 135 USgal

What is the Shadow® Overflow

Arrow Crab Glass Cleaners High light and flow isArrow crabs are a unique invertebrate for a saltwater tank. They have an appearance similar to a spider, and like one, an arrow crab is predatory in nature. They can also be very territorial. Arrow crabs have also been known to consume bristle worms due to their opportunistic behavior. Just be sure to keep them well fed, as they have also been know to eat other aquarium organisms.