Fin Rot

[michaelwgroves]

I purchased some new fish 2 weeks ago from a LFS that I would not usually use but while I was in there looking for pipe work I noticed some Rainbow fish I had not seen available in my usual LFS, so I took some while I was there.
A couple died overnight, but I put that down to the stress of moving.

One week ago my 2 year old bought back 2 pebbles from the beach, so I put these in my tank.

In the last 3 days I have lost 7 fish, was not sure what it was before, but thought it might be the dreaded Neon Tetra Disease as my first 3 loses were tetras.
However, yesterday I noticed fin rot on a molly. I moved him to the Quarantine tank and gave the first dose of Melafix. Unfortunately he was dead this morning.
I have now noticed a few more fish with Fin Rot, so I am now treating the main tank.

Apart from this, I have purchased no new fish or installed anything else in my tank in 3 months, nor have I had any loses in this time.
Any idea's where it came from?

 

[Dark Wolf]

hmmm, what are your water stats? Did you clean the pebbles before putting them in? Also the fish you bought from the shop could have been carrying the disease without you knowing, did you put them in quarantine before adding them to the tank?

 

[loachman]

Newly imported/shipped rainbowfish are pretty suceptible to fin rot. It is not uncommon at all for them to get it.

Typically, it is caused by stress and poor water quality. It is fairly easy to treat though and isn't as deadly as some other diseases like ick.

 

[michaelwgroves]

My water stats are very good, Ammonia 0, Nitrite 0, Nitrates 10.

I'm losing about 3 fish a day. Apart from An Angel (Still live) and a Guppy & Fighter, which all had/have signs of fin rot. The other dead fish ll look good. No marks grazes or ulcers etc.

Maybe the Rainbow fish gave my tank Fin Rot, and the Molly's I purchased were carring NTD ?

 

[WILDER]

Did you sterlise the pebbles from the beach.
Ntd signs are looking bleached out in the red stripe area, can look milky also.
Brown or yellow on the blue area.
Leaving the shoal.
Swimming oddly.
Lumps on the belly that go to a point.
Black linning around the red area.
Dropsy to popeye.
Bent spines.

Finrot is usually caused by bad water quality.
Signs to look for.
White or red edging to the tail.
Red streaks in the tail.
How much of the tail has gone.
Any holes in the tail.
Fins looking transparent.
Finrot is bacterial.

 

[afishdude]

are you sure its not the fighter killing them? they should really be kept alone. im guessing your "fin rot" is your angelfish and your fighter nipping at each other and the other fish you add. can you get the fighter its own tank? preferably a 5g or so.

and is it a male or female?

 

[Squidman]

Fin rot occurs from the fish being stressed some how. The most common stress reason is that poor water quality, over-feeding, disastisfaction of the food, and being chased around by other tankmates.