Make sure you don't add the new girls right away. Your going to need to quarantine them for at least a week. IMO you should quarantine them for no less than 3 weeks. You don't want one sick girl to kill the whole sorority.
If the tank is cycled (I would test it before moving it, you should have 0 ammonia, nitrite and 0-20 nitrate), make sure you keep the substrate and the filter media wet at all times and you should be able to keep your cycle that way.
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