Am I over-reacting?

[dennis romano]

I need a little advice. My one reef tank has been set up for twenty years. The current inhabitants are a pair of perculas, a pair of banggai, and a royal gramma. All of them have been together for about four years. This past November, I added a flame angel. For the last week, the flame has been beating on the gramma, who has been hiding in his cave. He finally came out yesterday, tail clamped and scratching on rocks. Today, he is MIA. All of the other fish are acting normally and eating well. Here is the possible problem. The perculas look like they may have parasites, very fine tan dots. Tough to see because of the similar colors. No one else shows any issues. Today, I did a 25% water change. Am I over-reacting or are the fish in trouble? If they are in trouble, what is my next step?

 

[Old Fritz]

Which looks more like your clownfish?

Or this

(Couldn't find a good picture of clownfish with marine velvet)

It's hard to tell in the photo but it looks like your clown is getting a thicker slime coat which is a symptom of brook. If your clownfish looks more like the first image it probably is brook. In which case the treatment is formalin dips. Here is the thread for treatment.

Brooklynella

Brooklynella hostilis What You Need To Know: * This is most often seen in clownfish, but it can afflict any fish. The fish’s skin will appear to be peeling or sloughing off, oftentimes causing excessive white mucous to form around the affected area(s). * Treatment of choice is a 45 minute...

www.reef2reef.com

If it's more like the second image with dots all over the fish then you have velvet. With velvet you will have to remove all fish from your dt and treat with copper for 30 days and letting your tank go fallow for 6 weeks.

Velvet (Amyloodinium ocellatum)

Marine Velvet Disease (Amyloodinium ocellatum) What You Need To Know: * Fast killing parasite capable of wiping out most of your fish in just a matter of days. Sometimes there are survivors, sometimes not. * Can be treated in a quarantine tank using Chloroquine phosphate or Copper. A 5...

www.reef2reef.com

If you could post more pictures with white lights it could help us determine the disease more accurately. If there is one at all

 

[dennis romano]

Definitely not like the Gramma. It is tough to get a photo because they are constantly moving. If anything, one is starting to look like your picture of the clown. I was thinking brook also