Mollies generally and specifically

Question
Hello! I'm glad to see that not everyone who will answer molly questions is on vacation!
I've been keeping mollies for just over a week in a new aquarium. I've put in the cycle for good bacteria as well as the chemical remover, following directions to a T. I've been getting mixed opinions on what to do about water changes though - everything from 25% weekly to nothing for the first 6 weeks. I would really appreciate some advice on that :). That's the general part!
Specifically, I have three mollies in a 15 gallon tank, heated, filtered, furnitured (some fake plants and statues). My newest molly is an orange balloon molly with some white details. Some of his markings look a little irregular and I am concerned about ich. None of my other fish have symptoms and they all swim and eat normally. Is there any way to tell for sure?
Also, I think one of my females may be pregnant! She's getting quite round, so it must have happened before I bought her. I've read that adding extra hiding places is a helpful thing to do with pregnant mollies when there are males in the tank - I don't want to stress her out with a breeding net, and I don't have a spare aquarium to move my male into. Should I put in some more plants?
Thanks so much!
Kelsey

Answer
Hi Kelsey,
 You cannot do water changes too often.  You could change some water every day and that would be fine; however,only change about 25% at a time.  

 Ick looks like a dusting of icing sugar, i.e., very tiny white dots.

 I think putting in more plants is an excellent idea.  BTW, the cool thing about fishes like mollies is that they can store sperm, so she might have mated quite a while ago and can continue to use sperm from that mating for several batches of kids.  

-- Ron C.
  rcoleman@cichlidresearch.com
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