← Back to the hatchery journal

Clownfish Care

What to Look For Before You Choose a Clownfish Online

Shopping for a clownfish online should feel exciting, not confusing. Here are the simple signs of a healthy, aquarium-ready clownfish—and why captive-bred fish make the choice easier.

Healthy orange-and-white ocellaris clownfish swimming in a reef aquarium setting.

What to Look For Before You Choose a Clownfish Online

Buying a clownfish online should feel fun, not like a guessing game. A good listing helps you understand the fish in front of you: what it looks like, how it is behaving, and whether it is a good fit for your reef tank.

At Blue Eyed Clowns, we raise captive-bred clownfish for aquarium life. That means our fish are born in controlled systems, started on prepared marine foods, and handled with the needs of home reef keepers in mind. Still, every buyer deserves to know what to look for before clicking “buy.”

1. Look for a full, balanced body shape

A healthy clownfish should look filled out through the body, not pinched behind the head or thin through the belly. Juvenile clownfish can be small, but they should still look proportional and alert.

When you browse available clownfish, look for:

  • A smooth body outline
  • Clear, upright posture in the water
  • No obvious wounds or missing scales
  • Fins that are held naturally instead of clamped tight

Designer morphs can have dramatic patterns, but the basics still matter most: a strong body, good movement, and a fish that looks ready for a reef aquarium.

2. Notice the fins and markings

Clownfish fins should look intact and useful for steady swimming. A tiny healed nick may not always be a major issue, but ragged fins, cloudy patches, or fuzzy growths are warning signs.

For designer clownfish, also remember that pattern is personal. Some reef keepers love bold white coverage, some prefer classic orange, and others like unusual markings. The “best” morph is the one you will enjoy seeing every day in your tank.

3. Ask whether the fish is eating prepared foods

One of the big advantages of captive-bred clownfish is that they are raised around aquarium routines from the beginning. They are usually introduced to prepared marine foods early, which can make feeding at home more straightforward.

For a new clownfish, a varied diet is still helpful. Quality marine pellets or flakes can be part of the routine, with frozen foods such as mysis shrimp or enriched brine shrimp used for variety. Feed small amounts the fish can finish quickly so extra food does not break down and hurt water quality.

4. Watch for normal alert behavior

Healthy clownfish are not required to swim laps all day. They often choose a favorite corner, rock, tile, coral area, or anemone substitute and spend lots of time near it. That can be completely normal.

What you want to see is alertness. A healthy clownfish should respond to movement, hold position in the water, and show interest at feeding time. Red flags include heavy breathing, constant hiding when that is unusual for the fish, erratic swimming, white spots, visible growths, or a sudden lack of appetite.

5. Match the fish to your tank plan

Before ordering, make sure your aquarium is ready for the fish you want. For smaller clownfish species like ocellaris and percula, stable water quality matters more than chasing perfect numbers. Ammonia and nitrite should be zero, temperature and salinity should be steady, and the tank should be able to handle a new addition without a sudden swing.

If you are planning a pair, start with fish that are size-compatible and give them room to sort out their relationship. Clownfish can be territorial, and the larger female often becomes the dominant fish. Some chasing can happen, but serious injury or relentless bullying is not something to ignore.

6. Choose a breeder who is clear and helpful

A trustworthy clownfish seller should make it easy to understand what you are buying. Clear photos, honest descriptions, and practical care guidance are all part of a better buying experience.

When you shop with Blue Eyed Clowns, you can browse captive-bred clownfish, learn about care basics, and contact us if you need help choosing the right fish for your reef. We want you to feel confident before your clownfish ever leaves our hatchery.

A simple pre-buy checklist

Before you choose your next clownfish, ask:

  • Does the fish look full-bodied and alert?
  • Are the fins and skin free from obvious problems?
  • Is the pattern something I will enjoy long term?
  • Is my tank stable and ready for a new fish?
  • Do I have a plan for acclimation and observation?
  • Can I contact the breeder if I have questions?

If the answer is yes, you are in a much better position to bring home a clownfish that fits your reef and your goals.

Ready to browse?

Take a look at the available clownfish on the Blue Eyed Clowns website, compare the patterns you like, and reach out if you want help choosing. A little planning before purchase can make the first week calmer for you—and for your new clownfish.