DeeOooGee wrote:

I have a Kole tang that has been doing great (or so I thought). I have had
him for about a month and a half. I noticed over the last few days that he
has what looks like two small slices(one on each side) on his tail. Is this
normal? It didn't seem to bother him and they look identical, so I thought
that maybe this is just the way he is. I have not been able to find any
pics that show clearly whether or not this is normal.

Yes. There are little knives hidden in these slots. If tangs need to defend
themselves, they unfold the knives and slash with the tail. They are also called
"surgeonfish" because of this.

Suddenly today (only about an hour ago) I noticed what looks like ich all
over him. I want to get him treated ASAP, but I do not know if what I want
to use for a quarantine tank is sufficient. I have a small 6 gallon tank
that I have not used yet at all. It has built in light/bio-filter/heater.
Is this too small for this purpose?

I wouldn't use it, but it might work. Set up water as if you were going to run a
water change on your main tank. Keep your hospital tank the same temperature as
the main tank. Then, if you need to change the water in the hospital tank, you
can drain it, refill it from your main tank, and top the main off with new
water. That way, you'll be keeping the hospital tank full of seasoned water. A
tank that small will start to have problems with ammonia buildup in three days
or so.

In my main tank I have live rock, shrimp, snails, feather duster, green
mushroom coral, green polyp coral. I don't think I can treat this tank from
what I have read.

I use CopperSafe. That will definitely kill the shrimp and feather duster. I
don't know if coral is affected.

George Patterson
I prefer Heaven for climate but Hell for company.