Macrioharyngodon Geoffroy-Potter Wrasse
A very hard to keep wrasse that last for a number of weeks and then usually dies. Most will drive into the sand and never come out or when they do they don't eat. Because they're need to hide in the sand you'll need to have sand in the tank, if you have any chance of them surviving. These fish should really not be kept except by an expert and with a well established reef tank.
Anamses Wrasse
The Red tail wrasse it's a tough wrasse to get to eat and most just die from starvation. They will drive in the sand so a sand bed is needed. A good fish to pass on as it's very hard to keep.
Halichoeres Iridis- Radiant or Iridis Wrasse
The Radiant or Iridis Wrasse comes from Africa and doesn't show up that often. It's a very tough fish to keep as it doesn't usually eat or it eats but eventually starves to death. Needs sand and it will drive into the sand also a tight cover and it will jump. Most seem to die and should only be handle by experts.
Anampses Neoguinaicus-China Wrasse
A very beautiful wrasse that is very hard to keep. Most will not eat and spend a lot of their time in the sand, so a sand bed is needed. Need to be kept with non aggressive fish. Even though it's very temping to get this fish because of it's beauty it should really not be purchased as most if not all die.
Macrioharyngodon Meleagris-Leopard Wrasse
A very hard to keep wrasse that last for a number of weeks and then usually dies. Most will drive into the sand and never come out or when they do they don't eat. Because they're need to hide in the sand you'll need to have sand in the tank, if you have any chance of them surviving. These fish should really not be kept except by an expert and with a well established reef tank.
Halichoeres Hortulanu-Marble Wrasse
The Marble wrasse is a hard wrasse to keep. Most don't eat and will drive into the sand at any sign of danger. It's known to hide for weeks at a time and then all of a sudden appear. Because of its beauty most people buy it only to have it die on them. Should really be left to the experts only.
Labroides Dimidiatus
Blue streak cleaner wrasse. Most don't eat or what they eat isn't good enough to keep them alive. Most die while some do start to eat but rarely last longer than 1 year. At night it will seal itself in a mucus cocoon.
Exallias Brevis-Leopard Blenny
Not reef safe as it will eat corals. Get to be a pretty large size, about 6".
Acanthurus leucosternon-Powder Blue Tang
Powder Blue tangs are reef safe, but is a fish that doesn’t usually do well and there are a lot of deaths along the way. Most Powder Blue tangs arrive in bad shape and have a number of problems that should be looked at carefully before you purchase one. Things to look for: consistently moving back and forward of the eyes and consistent swimming in circles. Sometimes the fish will come out of this but most times they will not and will die eventually. Also look for signs of ich or marine velvet as Powder Blues are very prone to both. Also, Power Blue tangs can be very high strung and attack all the other fish in the tank, a lot of times this will lead to the Powder Blue being over stressed and eventually dying. Powder Blue tangs need good size tanks, at least 75gal, and plenty of space to move around it. Some get along with other tangs but for the most part Powder Blues are very aggressive and it’s best to keep them without any other tangs as adding others tangs is always a crapshot. Even if you get a good one, they usually don’t have long life spans, some living for only 3 – 5 years.
Acanthurus Japonicus-White Cheek or Powder Brown Tang
These tangs are reef safe and usually do well with other tangs that aren’t similar in shape. They don’t get too large, even though some very large ones do come around from time to time, but they still need a good sized tank. They are prone to ich and don’t always come in in the best of conditions, so care needs to be taken when getting one as a lot of them do die because of either ich or from shipping.
Acanthurus Achilles-Achilles Tang
An Achilles tang is a fish that is for the most part very tough to keep. They don’t usually ship very well, are very hyper and get stressed out very easily. They’re also very prone to getting ich and usually don’t do well with treatments of copper or for that matter in quarantine tanks. They do get pretty large and because they stress out so easy, they should only be placed in large tanks with plenty of hiding spaces and swimming room and a good amount of flow. This is a very beautiful fish but really should be left to someone with a very large tank and a lot of experience as most just don’t make it.
Naso Vlamingi-Vlamingi Tang
This is a very large tang that reaches lengths of 2’+ and should really be only kept in very large tanks or public aquariums. Small Juv. can be obtained but they have nowhere near the colors or streamers of the larger adults. They don’t start to color up until they reach about 1’+ or more and anyone getting a small one, and thinking that there going to have an adult in time, will be greatly disappointed.
Acanthurus Sohal-Sohal Tang
A tang that does well in a reef tank but gets very large and over time becomes very aggressive not only against other tangs but other fish. Small ones aren’t as aggressive but that does change over time. They also do very well in FO tanks with very aggressive fish like triggers, groupers and large angels. Before purchasing one of these you really need to think as they do become problematic over time and need large tanks.
Paracanthurus Hepatus-Hippo Tang
Hippo tangs are really good tangs for a reef tank and usually don’t have any problems with any other fish, outside of other hippo tangs. There are very ich prone and need to be quarantined before placing them into your main tank. They do grow to a pretty large size, but most small ones will do well for some time in small tank, 55gal being about the smallest as anything smaller and they will outgrow it in a short time. When purchasing small Hippo tangs, try staying away from the very small sizes, usually around a nickel or so, as they have a very bad track record and most don’t make it. If you're going to get a small Hippo, try getting one that is at least the size of a quarter or even larger.