Parasite ID Assistance

todddye

New member
I have had 5 fish in QT since 9/24/2014 following a Brook outbreak in my DT.

I treated the remaining fish in QT with 4 Formalin baths into sterilized tanks, followed by 4 weeks of CP dosed at 40mg/g. After the first round of CP all fish looked healthy and were acting normally, so I did a 100% water change to remove the CP. After less than 1 week, my clownfish started displaying symptoms of brook again with color loss, and lethargy. Assuming I had not cleared brook, I did another formalin dip for just the clown and then re-dosed CP at 60mg/g thinking that the 40mg/g was not enough to eradicate brook. All fish were acting normally and eating well, so this past Monday I did another 100% water change to remove the CP and begin 3 weeks of observation prior to transfer to my DT. This morning, less than 4 days since removing the CP from the QT, I noticed several white spots on my Flame Hawkfish and I immediately thought it was Brook again. He is acting fine and eating well, but several of the fish have been fighting in QT (despite 10 PVC fittings for hiding spots) so it's possible the marks are from injuries or a secondary infection. His tail has chunks missing from it due to the fighting between him and the clownfish.

Additionally, I noticed 1-2 small marks on the side of the chromis which look like raised scales - but I am almost certain those are from fighting each other and with my rusty angelfish. I could not get a usable picture from the chromis, but the hawkfish was very cooperative - so here are several pictures from this morning.

I'm contemplating doing another round of Formalin baths and possibly finding Metro, but I truly hate using Formalin unless absolutely necessary - which is why I'm asking for help identifying this parasite or infection.

I'd really appreciate any help or advice!

Pictures:
<a href="http://s876.photobucket.com/user/todddye/media/20141204_070803.jpg.html" target="_blank"><img src="http://i876.photobucket.com/albums/ab323/todddye/20141204_070803.jpg" border="0" alt=" photo 20141204_070803.jpg"/></a>

<a href="http://s876.photobucket.com/user/todddye/media/20141204_070830.jpg.html" target="_blank"><img src="http://i876.photobucket.com/albums/ab323/todddye/20141204_070830.jpg" border="0" alt=" photo 20141204_070830.jpg"/></a>

<a href="http://s876.photobucket.com/user/todddye/media/20141204_070851.jpg.html" target="_blank"><img src="http://i876.photobucket.com/albums/ab323/todddye/20141204_070851.jpg" border="0" alt=" photo 20141204_070851.jpg"/></a>

<a href="http://s876.photobucket.com/user/todddye/media/20141204_070813.jpg.html" target="_blank"><img src="http://i876.photobucket.com/albums/ab323/todddye/20141204_070813.jpg" border="0" alt=" photo 20141204_070813.jpg"/></a>
 
The white marks increased by the time I got home from work, so I ended up setting up 2 new tanks and dipping all fish in a formalin bath before putting into the sterile tanks. I'm hoping that separating the fish that were fighting will help them heal. I dosed 1 ml into the 10 gallon tanks for the long term bath as well. I'm planning on repeating this process on days 1, 2, 3, 5, 7 & 11.

Snorvich, Humblefish, or others - Do you see any issue with my treatment plan?
 
If I were a fish, X marks the spot between those big eyes and spiky dorsal find. My guess would be bite marks, especially knowing how sedentary flame hawks are. Separate QTs are always a good idea, even if it's just one long tank divided by panels or egg crate- it gives the fish room to heal.
 
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