Fin Rot on a Hydrolycus Tatauaia -- Please Help

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framcosco

Peacock Bass
MFK Member
Nov 15, 2010
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los angeles, ca
I purchased a 4.5" Tat about 1 month ago. It came very "healthy" and active but was told by the seller it had been in a fight with another tat. Its caudal fin (20% missing), dorsal fin (50% missing), anal fin (10% missing), and pelvic fins (40% missing) ..... were all "randomly" tattered -- characteristic of fish fighting.... not uniform as found in fin rot.

One month later, looks like all fins are recuperating/growing back with the exception of the anal fin..... seems to have fin rot in this area as it is getting quite close to its body. There is no white "film" or white edges, so I suspect it is bacterial and not fungus.

The tat has been very active since it arrived. I tried weening off live the first 10 days but it refused any dead foods offered (silver sides, prwns, mysis shrimp, etc). On the tenth day the tat started swimming belly up.... it was on the brink of death.... it rather die than eat dead foods. I reluctantly fed the tat some of my ornamental fish (healthy fish) and have since set up a quarantine tank to house 100+ mosquito fish, fancy guppies, and an assortment of tetras.... as its food source..... after the 10nth day it has been eating live EVERYDAY with zeal. Based on feeding and behavior the tat is absolutely healthy (which leads me to believe this is a primary infection and not secondary) ....... I am worried about its anal fin.... once it reaches the body, it may be too late.

I've read the long sticky on aquarium salt and its uses for diseases. I doubt using salt is going to cure the fin rot if it is a bacterial infection. I know salt has its benefits but the tat is eating and is very active.

Any suggestions? People who have owned Hydrolycus sp. and been successful at curing fin rot? Injecting antibiotics in the feeders? If so, what comes in injectable form? Concentration? Treat the whole water column as it is an external infection? If so, what works well to treat gram negative bacteria? Dosage the same or 1/2 of dosage?

PLEASE HELP. I welcome all suggestions.

Water Params: ammonia: 0ppms, nitrite:0ppms, nitrate:approx <10ppms.
Tank/Tankmates: Well cycled 55gal tall, No tankmates
Filtration: Aqueon 55, Cascade 1000 canister, aqua 15 watt UV
Water changes: Every 5-7 days, 50% water changes, vacuum its poop on a daily basis
Additives: liquid vitamins in the feeder food and water column
 
Sorry that no one has chimed in and I can't really add any help but this is one of my favorite groups of fish and I feel like I have to offer something although you seem to have the bases covered.I don't think the feeders are the cause of the tat getting fin rot though and I would either add some aquarium salt or a mild fungus medication.I have done this with payara in the past with good results.
 
If so, what works well to treat gram negative bacteria?

Sorry I can only speak to this -- last night I thought one of my clowns might have fin rot so I did some reading up on it, never having dealt with it before. What I found was, if you catch the fin rot early enough Melafix is a good choice. If it is a more serious infection, Maracyn and Maracyn II are good choices - one treats gram-positive and the other treats gram-negative, and they are safe to use together. Sorry, thats all I've got for you...
 
An update....I disconnected the uv..... started & finished a full treatment of Maracyn plus (wide spectrum antibiotic)...... the fin rot continues to take a hold of my fish.... the tat is now eating less..... and becoming increasingly skittish....

Melafix seems to be a hit or miss.... my two cents.... it is wonderful at helping the regeneration of damaged fins/scales as long as the area is NOT infected...... once an infection takes hold, the melafix becomes useless. This is why some people swear by it while others think its useless...... in my case it is definitely a bacterial infection..... so melafix will do little if anything to help my tat......

I will be doing a full treatment of triple sulfa tonight.... after a 50% water change.....

If this fails... I will catch, sedate, and apply a topical antibacterial cream on all its fins.....

Any one with Hydrolycus & fin rot experience?, please!! ..... any other suggestions..?!

Thank you for your time.
 
Sorry that no one has chimed in and I can't really add any help but this is one of my favorite groups of fish and I feel like I have to offer something although you seem to have the bases covered.I don't think the feeders are the cause of the tat getting fin rot though and I would either add some aquarium salt or a mild fungus medication.I have done this with payara in the past with good results.

What was the specific meds you used as a mild antifungal medication?
 
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