Kole Tang not eating

donald altman

New member
I need some help guys and girls. I have a 100 gallon tank with a 20 gallon refugium. Currently it is a mixed reef with one Kole tang and about 8-10 damsels of various types and one magenta dottyback.

All my fish get along and eat like pigs.. well all except for the tang.
The system is mature everything looks and acts healthy.. except the tang.

When I first got the tang several months ago it was semi shy and would notice its reflection in the corners of the tank. however it would come out and swim around quiet often. The kole tang would graze on the turf algea I had a problem with growing on my rocks. The rocks are clean of turf algea now for the most part (thank goodness) and the tang has stopped eating from what I can observe.

He is looking rather thin. And he has become even more reclusive than when I first got him. he spends 75% of the time hiding in the rockwork and very rarely comes out at all when the lights are on full.

I have feed the tank small sinking pellets.. larger floating pellets... frozen mysis with garlic.. frozen brine dried krill and flake.

I have a large specimin of red nori (Halymenia floridana) that actually grows in my display tank that is softball sized or bigger. I have taken grape calurpa from my refugium and hung a peice from my mag float to see if the kole would touch it.. the damsels nipped at it some but looks to be untouched for the most part.. its been in the tank 2 days.. hopeing that the kole would try some at night when the lights go out. No luck. I guess I am going to try some green nori sheets tonight or tommorrow but I am wondering if I should be doing something else. I would think the fresh growing macro algea would be more up his ally than some dried stuff.

He does pick at the sand some.. and I see him spit some out occasionally. He still pecks at the rock and the glass some. When I do see him out he seems to swim just fine... no signs of ick or anything else in the tank.
 
Aren't the damsels driving the tang nuts? They have a reputation of intimidating many other fish to the point where they hide constantly.
 
not really.. they honestly act like the tang isn't in the tank and vice versa...

Each damsel has its own home area and they usually keep to themselves unless a fish is passing by them.. if the dinner bell has been rung they all school up and go to the top of the tank to eat..


One domino is the bigger of the other damsels and he doesn't nipp or harrass the other fish, he does shoo them off by racing towards them if they encroach his roch cave but thats about it.. the tang has never seemed scared of any of them. The tang swims wherever it wants pretty much and is respectful of their boundaries. None of the fish fins are nipped or are anyone of them constantly chased. The dotty back seems to command the most respect.. He literally goes whereever whenever without any chasing from the damsels.
 
It looks like your Kole never took to eating prepared foods as long as there was turf algae on the LR?

I'd soak your Nori in garlic to entice the Kole to eat. Maybe rubber band some Nori onto a rock so that it seems natural for him to graze on as well.

It's also possible that he has flukes if you didn't treat him or other fish with Prazi-Pro before. I had both a Kole and yellow tang in QT that didn't eat anything until I dosed with Prazi-Pro. Then they became pigs after 3-4 days. You might consider that option in your DT, as it's a pretty reef-safe treatment.
 
Your kole is intimidated. Koles swim all day not just when the lights aren't on. You may not see when it happens but one or more fish in your tank is bullying your tang.
 
Your kole is intimidated. Koles swim all day not just when the lights aren't on. You may not see when it happens but one or more fish in your tank is bullying your tang.[/QUOTEi

I agree that this is likely the case.

Me too. Unless the Kole has a disease or other physical problem that isn't obvious. I doubt that just finding the right food is going to change anything; a healthy tang should eat anything. A tang that acts intimidated usually is and damsels are notorious for this sort of bullying.
 
I need some help guys and girls. I have a 100 gallon tank with a 20 gallon refugium.

I would put the tang by itself in the 20g fuge to see if you can get it to eat prepared food. A healthy tang should eat pretty much anything as others have said it should swim in the open after a week. If it still doesn't come out or eat then there's something wrong with the tang.

My kole was 3.25-3.5" a few months ago and it's over 4" now eats all the frozen and pellets I put in there. It went in the rocks the first week then started swimming around after a week.
 
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