Name: Pseudocheilinus hexataenia|
This little wrasse is a great addition to any aquarium, when it can be seen it adds a flash of color to your reef or fish only tank. One other thing Iīd like to point out about this fish, if you havenīt noticed, no one can ever get a good pic of it, the reason for this is because itīs so quick, thatīs what I meant about "when it can be seen".
These can make a great addition, but they can also be very aggressive to fish added after them. They are excellent hunters of Copepods, so they will probably outcompete other fish who have the same diet such as the dragonettes. These fish are often recommended to keep the tiny snails that prey on Tridacna clams in check.
I have had a six line wrasse for about seven months now and just last week I saw him do something truly amazing. I bought a fairly large Yellow Tang to add color to by 280 liter tank about a month ago and he was not doing very well. After a couple of weeks, Ich started spreading on him and he would not eat. I've never seen a fish recover from Ich so I considered it to be just a matter of time before the Tang would succumb to the parasites. I glanced at the tank one evening and it looked like the six line wrasse was picking on the Tang. I went over to the tank and after looking closer I saw that the wrasse was eating the white Ich off of the Tang! He would pick it off of the Tang's body and the Tang would hold still for the wrasse (either he knew that the wrasse was saving him or it just felt good kinda like scratching). Anyway the Tang would hold one fin still while the wrasse picked off the parasites and then he would expand his top fin so the wrasse could get in between his fins. The two continued this activity for several days. It was truly amazing. As of now the Tang has started eating again and does not look to have any Ich at all on him. He still looks to have lost some of his color but I'm hoping that it will come back soon. Without the six-line wrasse, the Yellow Tang would probably be dead by now.
This is a wonderful aquarium addition, they will feed on a lot of the unwanted pests on your live rock, including bristle worms. I have kept them singles, since they will fight with their own species. They enjoy many caves to swim through and will accept many types of foods, including flakes.
This is a delightful fish and a very resourceful one at that. In the community SW tank, it should either be added when small or among the last of the fish, because larger ones can get aggressive and territorial. As the other poster mentioned, they do have very limited cleaner functions and will sometimes pick Ich off of infected tankmates. However, their cleaner instinct is far less so than other wrasses, such as the Pacific cleaner wrasse.
I've had the same experience with my 6-line wrasse as Brian W. My wrasse was picking Ich parasites off my Hep Blue tang. It was pretty amazing. He is absolutely my favorite fish and has the most personality out of all of them. He follows the percula clown around the tank and they are truly friends. It's amazing what goes on under the water surface.