Sounds like a nasty bacterial infection has set in on your beautiful fish. Many wrasses come to us and have internal parasites as the primary problem. Then untreated it spreads to externally visible symptoms, like fin & tail rot and other behaviors. Highly suggest the "trifecta" at this point: Metro + Kanaplex + Furna2
Do you have a quarantine tank?
Here's Humblefish's treatment advisory for Bacterial infections. Note the bolded and underlined:
Bacterial infections:
Symptoms - Sometimes it's self-describing: Popeye/cloudy eyes,
fin & tail rot, dropsy (bloated fish), etc. But some other bacterial infections, such as furunculosis, hemorrhagic septicemia, etc., can have varying visible symptoms. Any redness or open sores/wounds on a fish should be viewed with suspicion. Also, a white film or fungus-looking growth may denote a bacterial infection. It’s important to note that in many cases a bacterial infection is usually
secondary in nature to a parasitic infestation such as ich, meaning if a fish has been battling ich for a while then his immune system has been lowered. This makes infection more likely for many opportunistic, harmful bacteria.
Treatment options - Broad spectrum antibiotic medication i.e. one that treats
both gram-positive and gram-negative bacterial diseases. Examples of this include
Furan-2, Kanamycin aka
Seachem Kanaplex,
Nitrofuracin Green Powder,
Triple Sulfa Powder, or a
combination of using both Erythromycin & Minocycline. The latter can be accomplished (albeit expensively) by using freshwater
Maracyn 1 & 2 and then doubling the dosage for saltwater use.
When battling a particularly nasty bacterial infection, combining Furan-2, Kanaplex and metronidazole (ex. Seachem MetroPlex) can be very effective (and safe). Props to “hedgedrew” for enlightening me of this.
@4FordFamily,
@eatbreakfast,
@Humblefish