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tetra with lip growth-Please help me


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I am re-entering the hobby after a 7 year hiatus. I am new to planted tanks. I have a 10 gallon planted tank with 3 amano shrimp, 2 nerite snails, 2 blue Neocaridina shrimp, and 7-> 6 neon tetras. The planted tank has been set up since May 3rd. Two of my tetras had a white small growth on their lips. What is it and how do I treat it?


My fish tank parameters:

10 gallon tank below with some modifications to the sump style filter to contain bio rings and course filter pads. Also running an air stone


Heavily planted

Contains wood decoration

Deep gravel bed (3-5”) for nitrate disposal

Temp: 76-78 degrees, usually 78 (eheim adjustable heater)

Nitrates: 7

Nitrite: 0

Ammonia: 0

KH: 90 ppm

GH: 107 ppm

pH: 7.5-7.6


3 of the tetras I had since 5/24 and the other 4 since 10/4. I put the old fish through 2 rounds of meds (the trio recommended by aquarium coop) when I got them. I put the new fish through 2 rounds of meds in quarantine (~6 weeks of quarantine) when I got them. I added the new fish to my old tank 11/17.  Then one of the old tetras got the growth on his lip. A day after I noticed the growth it started breathing faster. 1 day later I found him dead. One of the new tetras has had a similar looking lip since I got it. However it is eating well and behaving normally so I did not think it was a problem. Looks like I was very wrong. The lip abnormality on the new fish did not respond to the two rounds of med trio. What do I do now? Salt? Repeat med trio? Other Meds? If I use salt do I need to remove all my plants to prevent them from dying? I am so afraid all my fish will die. 


Enclosed are pics of the old tetra with the lip growth 1 day prior to death, and a picture after death. I could not get pics of the new fish with the lip growth because he is a fast little bugger. Also pictures of my aquarium for context. 




20201120_225618 copy.jpg

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OMG, I have the same thing... I think. My neons have this, it started small like yours. But then grew to the point where one can't close there mouth. 😞 My neons also have furry growths on them, I put them through salt for a long time to no avail. I really don't know what is is. I have also just treated them with E.M. erythromycin but no change. I have seen people have the same issue as me online but know one knows what it is. If anyone knows or finds a cure please tell me and Mira. My guess is it is from inbreeding at fish farms but I really don't know. Hope your fish make it! 

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