3 Pregnant Mollies 1 Male

Hello,
I have got 4 mollies in one tank tand they all keep fighting and their fins are ending up spliting and rehealing.... Are they fighting because their are three pregnant females? Anything that I can do to take stress off of them that you know of? Two of the females seem close to popping and have been pregnant for about 2 months now.

 

How big is this tank? What are your water parameters? Is it planted? Pics would be helpful

 

How big is this tank? What are your water parameters? Is it planted? Pics would be helpful

heavily planted 10 gallons two little castles to hide in.

 

heavily planted 10 gallons two little castles to hide in.

Hmm, they need to be in at least 20 gallons. Depending on what kind of molly they are, they can get quite large. How long has this tank been set up and how long have they been in it? How big are they now?

 

Hmm, they need to be in at least 20 gallons. Depending on what kind of molly they are, they can get quite large. How long has this tank been set up and how long have they been in it? How big are they now?

Its been set up for a month now. They have grown quite large and I will most likely be moving them to a bigger tank soon.