Whats The Truth On Mollies

Matt4u071

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So I for the past few months I've decided to put mollies in my tanks. I have a little area in my house and it looks like a fish shop. I have four aquariums and in three of them i have mollies. Ive read all kind of stuff about them and read through all kind of blogs about them. So whats the truth. They say brackish water yet mine are in freshwater and obviously are thriving since ive had to buy a special tank just for the non stop babies. Second they say they will eat the babies, yet again ive had two big pregnant mollies in the fry tank for weeks and they dont eat them. in fact they feed with them. so im beginning to wonder if the fry tank is even needed. third if i should keep the fry tank and move big pregos in their, how can i tell when to move them in their. dont wanna stress to early and lose the fry. cause ive learned my pet store will buy them or trade my babies for new fish after their so old.
 
hi :)

ive never kept mollies in brackish.. then again ive never bought any from brackish either.... having said that i have also bought more than my fair share of very bad quality mollies
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but they are mass bred fish so from stores like the dreaded PAH its too be expected.

mollies will eat babies, bt not the way guppies and platies will.. they would eat every single one
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there are plenty of guides to 'squaring' in the livebearer section.. follow that and you wont go wrong.. but ifs it purely for pregnant fish i would do it sooner rather than later.. she will get very stressed if netted up during giving birth and poss abort.
lots of plants will eat the fry survive and you can move out the mum a few hours even days later... but im sure you know that :)

shelagh x
 
I was wondering about this as well. From what I read most people said salt was not needed, but makes it easier to care for them. As in the water parameters don't have to be perfect for them to be healthy with salt.

My question was, I am king of new to this and didn't know the difference between salts. I bought aquarium salt and added that, then saw that people say brackish requires marine salt. Do I need to change that out and buy another pack of salt or does it not make a big difference?
 
What you need to learn is, if you keepmolliws in brackish or even with aquarium salt the other fish are effected so you can't have a real community tank.
No I keep mine in fresh, it's just easier to keep them happy and breeding with salt.
 
So in my tank I have a couple lyretail guppies, which I read are fine in brackish. Is there much difference between aquarium salt and marine salt or can I continue using aquarium?
 
I wouldn't use any because I don't think guppies are good in brackish I think it's just platys and mollies.....
 
Welcome to our forum Matt4u071.
I keep my own mollies in plain tap water and they thrive, much like you have experienced. I suspect we each have the same advantage. Our water is fairly hard with a high pH. That means that the minerals that typical mollies need is being supplied adequately. For people who can breed things like neons in their tap water, the need to add salts for mollies is very real. Mollies in general need rather high mineral content water. It can be supplied the way you and I do it by having tap water with a high mineral content or, for those less fortunate, by adding some sea salt. A molly from the local pet shop will not only survive but will thrive in a reef tank, with its salt content. Mollies are what is known as euryhaline fish. They can take almost any salt concentration from pure fresh water to pure salt water. My own mollies only ever see my tap water, but it is a well established practice of salty folks to use mollies to cycle their salt water tanks so that they do not risk their very expensive salt water fish while doing a cycle.
My fish drop their fry and are not at all opposed to eating a few, but the vast majority survive predation by their parents as can be seen in this picture of one of my females and her fry. She was housed with the fry from the day they were dropped and this picture was taken on day 35 after a drop. I could have probably saved a few more fry by using a breeding trap but I saw no point to doing so.
MomNEm35_1024.jpg
 

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