Six Line Wrasse: Discover Everything About This Popular Colorful Reef Safe Fish

The incredibly unique and colorful reef safe fish, the Six Line Wrasse has been popular with hobbyists for many years. The Six Line Wrasse goes by several other names: Six Stripe Wrasse, Six Striped Wrasse, Striped Wrasse, and the scientific name is Pseudocheilinus Hexataenia.

Reasons for the Six Line Wrasse having such a popular fanbase come in abundance. However, the main justifications are the obvious beauty displayed in the distinctive array of bright colors and patterns, and the mild and peaceful temperament. You can rest easy knowing that none of your Six Line’s tank mate invertebrates will go missing or sustain injuries when you are not looking!

Not only will the Six Line Wrasse not harm your invertebrates, but they also tend to avoid damaging corals that they are housed with too. These fish are perhaps one of the most colorful species that are relatively easy for beginner hobbyists and tank owners to look after.

What is a Six Line Wrasse?

Six Line Wrasse

It is extremely tough to argue a negative case against the Six-line Wrasse when you look at their incredible neon blue bodies, accompanied by beautiful orange stripes seeping across their bodies. What is potentially the most striking feature to the fish, however, could be the piercing red eyes, with two white stripes running across them.

Despite not being a particularly hostile fish when it comes to other aquarium inhabitants, a popular trait possessed by the Pseudocheilinus Hexataenia is their predatory nature towards the unwanted tank guests, such as smaller bristle worms, flatworms, Hydroid Jellyfish and other parasites and critters that can cause harm to your tank and other fish, or that you simply wish to be removed.

The Six Line are shyer and more reserved than other members of the Wrasse family, so having plenty of hiding spots for them to relax in is recommended, especially upon their initial arrival. After they have settled in however, they will become some of the more active members of your reef. It is not necessarily an amazing thing though, this is because they have gathered somewhat of a little reputation for picking on other, more passive fish, which includes other Wrasses. They also have a tendency to guard a hiding spot extremely well once they have discovered it.

Can you keep more than one Six Line Wrasse?

Usually, this behavior mostly occurs when your aquarium is slightly malnourished and is not being fed as well as what is required. You want to avoid and prevent a potential nutrient spike from occurring in your tank, and careful considerations should be made to find a balance with how much you feed the tank compared with how much is wasted.

Here is what you need to know regarding the tank requirements and general requirements for keeping a healthy and happy Six Line Wrasse:

Six Line Wrasse
  • The minimum sized tank to house them is 30 Gallons (136 Liters).
  • They are not prone to disease, meaning that they will likely live a relatively long and healthy life.
  • Their life expectancy can range anywhere between 4 to 10 years, however, as we know, fish can easily outlive or die earlier than their life expectancy and these numbers are purely from experience and what other aquarium owners have noted.
  • The Six Line is extremely beginner compatible as they do not require a lot of experience, nor a huge established tank.
  • The adult size is around 3 inches (7.6 cm), they could outgrow or undergrow this depending on several factors.

Another question posed by many when enquiring about new fish is “are they reef safe?”. The Six Line Wrasse is reef safe, and by this we mean that they will not eat or destroy coral, nor will they kill or eat the invertebrates in the tank too.

  • They are not predator tank compatible and will most likely thrive in more community-based tanks.
  • Fortunately, the Six Line Wrasse’s are not hard to look after and make life as a hobbyist relatively easy when looking after them and filling their needs.
  • The pH level must be between 8.1 to 8.4.
  • The fish thrive in water temperatures ranging between 22°C to 27°C (71.6°F to 80.6°F).
  • The preferred tank level is close to live rock.
  • A preference with the tank is to also have a tight and fitted lid, the Six Lines have been known to jump!
  • They live better and happier lives alone, therefore it is advised to have one per tank.

When it comes to feeding these majestic little fish, their diet is fairly basic. They are Carnivores, so will primarily be feeding off meat-based foods. They are also quick eaters, so therefore you will need to make sure the rest of your aquarium community is being fed equally and not being overpowered by them. The recommended food would be flake, live, and frozen foods.


The fish acclimation process can be different from species to species, and for the Six Line Wrasse it is no different. Firstly, you will need to place your fish in a bucket and then drip acclimate for around an hour at a rate of 3 drips per second, which will bring the fish’s water parameters the same as your tanks.

Once the fish has been drip acclimated you will need to catch it with a net and place gently into your tank. Avoid putting any of the water the fish originally travelled in, into your tank. Once this is done, your Six Line Wrasse is acclimated and ready to live a healthy and happy life in your aquarium.

Potential Tank Mates

Maroon Clownfish

If you are thinking of purchasing a Six Line Wrasse at the beginning of your aquarium and hobbyist journey, it is important to know what other fish would be compatible with it. Six Lines thrive within community environments. So, lets check out the fish that would complement the Wrasses well, and become good tank mates.

The issue you get with the Six-Line Wrasse is that people have had bad experiences with them not being particularly model citizens. However, you often hear people say that they have been great no matter what fish you accompany them with. If you are unsure and want to add fish that haven’t been mentioned here, the key is to get fish that are calm by nature, and also slightly bigger than the Six Line, that way you should avoid any “bullying behavior”.

  • Tomato Clownfish -(can grow to 5.5 inches (14 cm) & peaceful fish.
  • Maroon Clownfish - can grow 6.7 inches (17 cm) & peaceful natured.
  • Powder Brown Tang - can grow to 8 inches (20 cm) & peaceful.
  • Copperband Butterfly - can grow to around 8 inches (20 cm) & peaceful.
Copperband Butterfly

The fish that we have suggested are not only good Six Line Wrasse tank mates due to their non-aggressive nature, but they also possess some pretty incredible coloration and would complement your aquarium extremely well when partnered up with the Six Line Wrasse.