Brooklynella and Uronema marinum

[lonicrux]

Dear Reefers,

Recently had a royal gramma who started rubbing his gills on the sand and rocks, then stopped eating, then very quickly developed a white raised lesion on its head and then died within hours. I am guessing this was a case of Brooklynella and Uronema marinum, with Uronema as the more likely candidate since I didn't see any sloughing off of skin.

There have been no new additions to the tank, but I did just transfer all fish, corals and sand and rocks from a 16 gallon nuvo to the 29 gallon, so stress may have been a factor.

The only other fish I keep in the tank is a damsel pictured below. The fish is behaving normally but has the below markings on his gills and face. No other signs of distress, poor eating, lethargy or rubbing, etc.

2 questions:

1) Is the Damsel infected and should I treat him?
2) If the damsel is removed/treated and or perishes, how long do I need to leave the tank fallow to allow the parasites to die off or clear?

Thanks. Tank stats below.

29 gallon biocube, reef tank.
salinity: 1.024
Ph: 8.3
Ammonica, Nitrate, Phosphate 0.0 ppm
supplementing calcium, alk, iodine, trace elements weekly
Eheim canister filter + Lee's Protein Skimmer
running: Chemipure Elite, Charcoal, Phosguard, Purigen

 

[HumbleFish]

The markings on the damsel's face look more like HLLE than an actual disease to me. Here is more info on Brook & Uronema: http://reefcentral.com/forums/showthread.php?t=2388437

The fallow period for Brook is 6 weeks; no fallow period for Uronema, as it does not require a fish host.

 

[Deinonych]

The markings on the damsel's face look more like HLLE than an actual disease to me.

+1

I would keep an eye on the damsel for the time being and be prepared to treat if symptoms arise.

 

[lonicrux]

Thanks, guys. Seems like I'll be watching him and see what happens over the next few weeks and reducing my activated carbon and do some water changes to see if HHLE is the culprit. I am running a lot of carbon right now since I figured the move to the new tank stirred up a lot of messy stuff due to sand moving and rocks an corals being all stirred up.

Thanks.