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There are some color variation between various common Flasher wrasse. I think you can decide what is better when you see them. If you have to get them sight unseen, I recommend looking at the Yellowfin Flasher.
I would recommend the regular McCosker rather than the Black fin McCosker. The Blackfin McCosker have black instead of bright blue color of the regular McCosker. I like the coloration of the regular McCosker better. Below are 6 of my Flasher wrasse that I had/having at one time or another. I do like the Yellowfin and McCosker best and Black fin McCosker and Carpenter least, but only slightly less.
You do need several Flasher Wrasses to get optimal interaction between them.
Carpenters
McCosker. Both are young males, will color up even better. The back part of the dorsal fin, and the front part of the caudal fin is florescent blue (or black in black fin)
Internet picture of a young Black fin McCosker
Yellowfin. The first is more mature and the second one is young. I like the dark red dorsal fin and the bright gold annal fin
I just got this guy from LA on Tuesday - sub adult male black fin McCosker’s wrasse. He was alive but seemed really stunned when he arrived - laid on his side in the bag the entire time I acclimated him. Once in qt, perked up and by evening was fine (just a heads up for you!)
I just got this guy from LA on Tuesday - sub adult male black fin McCosker’s wrasse. He was alive but seemed really stunned when he arrived - laid on his side in the bag the entire time I acclimated him. Once in qt, perked up and by evening was fine (just a heads up for you!)
I googled later and found out it’s pretty common. They’re easily stressed, and perhaps a bit melodramatic...I got my black fin from LA about 2 weeks ago and had the same experience. At first I though he was dead.
Looks great. Mine looks kind of washed out in my qt (which has horrible lights) but he’s eating like a champ. I dropped a couple pods in there for him the other day and they lasted all of 5 seconds!
He was hungry! I don’t think I have a ton of pods. I only see them when I clean my filter sponge. I just started a fuge so hope more will grow there.Mine was pale when I got him. He colored up and went into the DT last night. I have one other fish in the DT and it's a Helfrichi firefish. He's been in there alone for over a year. The tank was filled with amphipods and the firefish never ate them. I just noticed that the wrasse ate them all ;Joyful. There were 100s
No this would be the only one@joshyross70 are you planning to also have another wrasse with the McCosker?
I had one before and it went carpet surfingI am happy I finally have one. It's been a long time trying to find one. The Helfrichi only comes out when I feed. The McCosker is out all day long playing in the current.
Yeah I have one now. The one that got out was years agoYou really need a tight lid to keep flasher and fairy wrasse. It is best to keep 2 or more so they flash at each other.
I’ve heard the helfrichi can be shy. My orange firefish is out most of the time.I am happy I finally have one. It's been a long time trying to find one. The Helfrichi only comes out when I feed. The McCosker is out all day long playing in the current.