Is a star fish safe for tank?

In general, starfishes (or sea stars) are not considered safe for reef aquariums or aquariums with corals or invertebrates, as most species are primarily carnivorous and opportunistic predators. They may feed on corals, sessile invertebrates, mollusks, and other small organisms in the aquarium.

Some starfishes, like the Serpent Sea Star (Ophiarachna incrassata), are known for their aggressive predatory behaviors and can cause significant damage to corals and invertebrates.

The Chocolate Chip Starfish (Protoreaster nodosus) and the Red-knobbed Starfish (Protoreaster lincki) are also known to feed on corals and invertebrates.

However, certain species of starfishes are considered relatively safe and may be suitable for certain types of aquariums. For example, the Common Sea Star (Asterias rubens) and the Blue Link Sea Star (Linckia laevigata) are generally considered reef safe and can be introduced to a reef aquarium under careful monitoring and consideration.

It is important to thoroughly research the species of starfish before introducing it to your aquarium to ensure its compatibility and safety. Proper care, including providing appropriate food sources and avoiding overcrowded tanks, can help prevent starfish from preying on other aquarium inhabitants.