Internal Fish Parasites?

Question

I asked a question last night about my new Silver molly that had a red area under her skin that had slightly spread in the one day that I had her.

I separated her in a aerated tank but found her dead this morning:(

She was pregnant and the babies were expelled I suppose after her death. Some were not even formed yet, it's doubtful that they will even live but some are swimming around. Some are silver and some are light black colored, the silver ones you can see red so I suppose whatever she had affected her babies.

My question is, what can I use to treat the tank since I was forced to put the babies in my smaller tank which houses 3 other mollies. Will my 3 other mollies get it? Will it be safe to treat the tank even though some dont have it? what about medicated food? I've never had to deal with sick fish, any help greatly appreciated!

Answer 1

yes get an anti internal bacteria treatment made by interpet in england it costs£ 4.09 even tho some dont have it its better to treat the whole tank just incase or the 1`s that do have it will eventually spread the infection to yr healthy ones hope this helps u out sorry bout yr molly  

Answer 2

First make sure that that sore wasn't just an ammonia burn, caused by poor water conditions. Also ,the act of netting and moving female live-bearers within two weeks before their delivery time can cause them to abort the "prenancy" and die. The red color you are seeing in the new fry is just their internal organs showing through. Don't go throwing a bunch of weird chemicals in your fry tank,you will most likely kill the fry also. Internal parasites are rare in fish that live in clean, frequently refreshed water. Learn how to keep the gravel and water clean and your "parasite" problem will go away.