10 Easy-to-Keep Types of Saltwater Starfish for Aquariums

Saltwater starfish is a colorful and fascinating addition to any home aquarium. With a wide variety of shapes, sizes, and colors, there are many different types of starfish that make for interesting tank occupants. When selecting starfish for an aquarium, it is important to understand the individual needs of each type and to make sure that they will be compatible with the other fishes in the tank.

This article, I will discuss the 10 best types of saltwater starfish for aquariums, such as Blue Linckia, Serpent Sea Star, Brittle Star Starfish, etc, and also provide information on the care and compatibility of each species.

Moreover, I will also provide essential information about aquarium requirements, caring and diet for saltwater starfish. Whether you’re looking for a centerpiece starfish or an addition to a reef tank, this guide will help you make an educated decision when selecting the best starfish for your aquarium.

10 Types of Saltwater Starfish for Aquariums

Starfish are a popular addition to saltwater aquariums, and there are many varieties available to suit the needs of hobbyists. These unique marine invertebrates are often considered a low-maintenance choice, as they do not require special lighting or additional filtration. The following 10 types of starfish are some of the most popular for saltwater aquariums:

Chocolate Chip Starfish

These starfish have deep brown bodies peppered with white spots, and they are sure to liven up any space. Enjoy hours of calming relaxation as you watch them peacefully coexist with other fish and invertebrates.

Sand Sifting Starfish

Sand Sifting Starfish is an ideal choice for aquaria with a sandy substrate. These starfish feed by sifting through the substrate, consuming any debris or organisms in the sand, helping to maintain a clean and debris-free environment. Furthermore, their presence contributes a unique and aesthetically pleasing element to the aquarium.

Red Knobbed Starfish

The Red Knobbed Starfish is an incredibly unique and eye-catching addition to any aquarium. These starfish have long spiny legs with a bright red coloration that will add a splash of color to any tank. The Red Knobbed Starfish is an omnivore, eating both plant and animal sources of food, and they feed on detritus and various other small invertebrates.

Blue Linckia

The Blue Linckia Starfish is an excellent species to add to any home aquarium. Not only are they stunningly beautiful, but they are also quite hardy, making them an ideal choice for even beginner aquarists. These starfish grow to an average size of 4-5 inches and thrive in a wide range of aquarium conditions, making them a great fit for many types of aquariums.

Brittle Star Starfish

Brittle Star Starfish is a fascinating and captivating addition to any aquarium. These starfish have a unique look, with long and thin arms that can reach up to a foot in length and are covered in tiny spines.

These spines give them their name, as they are very brittle and can break off if not handled properly. Brittle Star Starfish has an amazing ability to regenerate their arms, often growing back within a few weeks.

Sunflower Sea Star

The Sunflower Sea Star is an ideal addition to any saltwater aquarium. Its vibrant yellow and orange coloring is sure to add a splash of color to any tank. This species of sea star is an omnivore, meaning it eats both plant and animal matter.

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They can be fed a variety of commercially available food, such as frozen brine shrimp, frozen shrimp, and freeze-dried krill. They are also known to scavenge for food in the sand and rock crevices of the aquarium.

Serpent Sea Star

The Serpent Sea Star is a magnificent addition to any home aquarium, bringing with it a captivating presence. Not only will this enchanting creature provide an interesting aesthetic to your aquatic habitat, but it will also work to maintain the delicate balance of the water by feeding on leftover food and algae. An ideal choice for the mindful aquarist, caring for this majestic species is a relatively simple task.

Crown of Thorns Sea Star

The Crown of Thorns sea star starfish is a unique and beautiful addition to any home aquarium. These sea stars, also known as Acanthaster planci, are native to the coral reefs of the Indo-Pacific region and can grow up to 24 inches in diameter. They are notable for their striking, spiny appearance and can range in color from yellow to deep brown.

Luzon Star Starfish

The Luzon Starfish (Asterina burtoni) is a marine invertebrate that is a fine incorporation to any saltwater aquarium. This starfish is native to the Philippines and is a popular choice among fish hobbyists due to its striking coloration and unique shape.

Luzon starfish have a bright orange color with white spots and intricate patterns of raised bumps. Their unique star-like shape gives them an interesting presence in the aquarium.

Double Star Starfish

The Double Star Starfish is a must-have for any serious aquarium enthusiast. This stunning starfish has a unique and captivating appearance, with two sets of five arms that extend from its center.

Its hardy nature and impressive size make it an ideal addition to your tank, as it is sure to draw attention and provide a central point for your aquarium’s design. Not only is this starfish visually stunning, but it is also resilient and easy to care for. It is tolerant of a wide range of water parameters and will adapt to nearly any environment, making it a great choice for both beginner and experienced aquarists alike.

When choosing a starfish for your reef tank, be sure to research its adult size, diet, and whether it is known to be aggressive towards other tank inhabitants. It is also important to make sure that the species you select is not listed as endangered or vulnerable, as wild populations of these animals are already at risk.

10 Fascinating Saltwater Starfish for Aquariums

Do Starfish Clean Tanks?

If you have an aquarium, you may be wondering if starfish make good tank cleaners. Yes, starfish can help keep your tank clean. They are scavengers and do a great job at eating the leftover food in your tank as well as any detritus or algae that accumulates in it. Starfish are also beneficial for aerating the sand bed and helping to turn over rocks and substrate to remove excess waste.

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Can I Use Any Type of Saltwater Starfish in My Aquarium?

When considering adding a saltwater starfish to your aquarium, it is important to understand the difference between aquarium salt options. Not all types of saltwater starfish are suitable for aquarium life. Research the specific species you are interested in, ensuring it is compatible and able to thrive in your tank’s water conditions.

Easiest Starfish Caring Tips

Taking care of Starfish is relatively easy. Starfish need to be kept in a shallow tank with enough room for them to move around and explore. The water should also be relatively warm, between 70-75 degrees Fahrenheit.

Make sure the temperature is consistent, as sudden changes can cause stress and make it difficult for starfish to adjust. Additionally, you’ll need to cycle your aquarium properly before adding any starfish, as they are very sensitive to poor water quality. Use a good filter and make sure the tank is well aerated.

It is important to provide them with plenty of live rock – this provides hiding spots where they can feel safe and secure.

Starfish Aquarium Requirements

If you’re thinking of adding a starfish to your home aquarium, there are a few things you need to know first. Starfish are beautiful, interesting creatures that can make a great addition to your tank – but they do have some specific requirements that must be met in order for them to thrive. Here’s what you need to know about starfish aquarium requirements:

Water Quality

Starfish are very sensitive to water quality and ammonia levels, so it’s important to maintain excellent water quality in your tank. Regular water changes and using a high-quality filter will help keep ammonia levels low and help prevent problems with your starfish.


Starfish need a soft, sandy substrate in which to burrow and hide. They also like to have plenty of rocks and shells around for hiding spots. Be sure to provide enough substrate for your starfish to move around freely and create their own little homes.

Diet & Nutrition

Starfish are mostly carnivorous, so they’ll need a diet rich in meaty foods like shrimp, squid, krill, etc. You can either feed them live foods or frozen/freeze-dried foods that have been properly thawed/rehydrated.

Be sure not to overfeed your starfishes as they tend to eat slowly and may not consume all the food you give them right away – this can lead to water quality issues down the road. Supplementing their diet with vitamin C is also recommended.


To sum up, saltwater starfish are a fascinating addition to any aquarium, providing a unique and captivating display of colors and movements. With so many different types of starfish to choose from, it may seem overwhelming at first.

However, the 10 types of saltwater starfish mentioned in this post are all easy to keep and suitable for beginners. Just be sure to do your research and provide the proper care and environment for your starfish to thrive in your aquarium. With the right attention and care, your saltwater starfish will make a beautiful and fascinating addition to your underwater world.

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