Originally Posted by agentamalia
Mollies and platies won't breed with each other will they?
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no, it is genetically impossible, mollies and guppys can they are in the same family.
and platys and sword tails will to.
but when you can go down to the pet store ( no rush)
buy some aquarium salt, and each time you do a weekly water change add half the recommended amount into the bucket, so if you use a 5 gallon bucket and change 5 gallons of water ad enough salt into the bucket for 2/12 gallons, just keep doing it, slowly adding salty water is the key. don't make it give it all the salt the tank needs at once, get the fish salt slowly. if you have any Questions ask, and i was the one that told you how to start a thread.
before adding salt what other fish are in the tank?