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Pregnant platy? Red gills & medicine

23 11:20:47

Question

red platy
Hi there, I havent been keeping fish long but I have a 100x50cm tank with 3 platys, 2 algae eaters (bought 3 days ago) 1 fantail and 1 baloon ram.

My main problem is I bought the 3 platy and 4 days later one had given birth, she was never that large and I had no idea she was prengant until we found the fry, there was only 3.

Ive seperated them now in a net and they seem to be doing very well, nearly a week old now.

However I'm not sure if the platy is still pregnant, her belly does seem larger than the other 2, I know 1 of them is definately a male and 1 definately female, the other im not entirely sure off.

I think it was my red platy (definately female) that had given birth based on the size it still is, even tho the fry are yellow.

I've heard that they can give birth over several weeks rather than one full load?

I'm thinking of buying a floating plastic breeding tank to put her in for a while so if she does give birth the babies would be somewhat protected, or some plants for the babies to hide in, what would you recommend?

Also I've had my water tested as I noticed since I got the balloon ram that and the yellow platy had developed red gills and I was told it may be a fungus infection and bought some stuff for the tank, it said on the package it wouldnt harm any fish but what about the fry?

Also I have an Eheim filter will that remove the medicine from the tank?

And my air pumps seam to be foaming since I put it in, is this related to the medicine? Its a new pump.

Sorry to be so long winded, thanks in advance.

Answer
Hi Kristina,
  Hmm... I'll try to answer your various questions

First, platys and other livebearers can often store sperm meaning that you don't even have to have a male in the tank for the female to get pregnant.  And she can do this a number of times before encountering a male.

Your filter will remove the medicine if the filter has charcoal/carbon in it.  

If your tank is foaming, that indicates that you have a lot of nitrogen stuff in there, i.e., you need to do more regular water changes.  You should be changing 25% of the water in the tank once a week, every week.

-- Ron C.
  rcoleman@cichlidresearch.com
  Cichlid Research Home Page <http://cichlidresearch.com>