Black Skirt Tetra's

[fish00053]

I have a tank full of many different Tetras. This applies only to the Black Skirt Tetra.

On the bottom side of one of my long fin black Tetras their is 3 little tiny like bubbles underneath the skin. Also on one of the Black Skirt Tetra's their is on the front fin at the base of the fin their is a black bubble like growth starting.

Is anyone familar with this type of possible situation. If so, what possibly could this be and what to treat with.

I started treatment with Professional Strength Melafix last night. I understand that most medicines with Tetras should be at half strength.

[Lady Hobbs]

Sounds like gas bubble disease. It can be caused from too large water changes or changing water of too different temps.

[fish00053]

Thanks for the info. I'll keep an I on them. Water temp never changes. I always use the bucket to fill and use a Thermomiter to keep it exact.