do you see any problems adding some Sail Fin Mollies to my hard water tank???

[Magnum Man]

currently has a few Rainbows, & a few Flag Fish in it???

 

[10 Tanks]

Hello Magnum. The vast majority of aquarium fish will be fine in the vast majority of public water supplies. So, I would say, I see no problems as long as the water is properly treated. You'll need a larger tank, because these are larger than most of the Mollies you get at the store. The larger tank, at least 55 gallons, will allow you a little wiggle room, if for some strange reason, you miss a regular water change. Mollies must have near nitrogen free water if they're going to thrive. These fish will put your husbandry skills to the test. Good luck.

10

 

[WhistlingBadger]

As far as water chemistry goes, happy rainbows and flag fish should make for happy mollies. It's been many decades since I've kept mollies, and I've never tried flag fish, but I seem to remember that the latter can be aggressive. (?) So I can't comment on behavior compatibility.

 

[GaryE]

I love sailfins. If the water is soft, they are prone to skin surface problems, but I think that's a hardwater tank, right? I know when I researched Poecilia latipinna sailfins, there were populations from different water, fresh or brackish. Poecilia petenensis come from straight up freshwater, and Poecilia velifera liked their salt.
Hobby hybrids seem fine with medium hard to hard water. The water supply where I am would be awful for them, and we don't even see them in stores in this softwater region. Bu they seem to do well in regions west of here, where the water's hard.
Behaviourally, they'd get along. Your flagfish looked rough recently though, and I'd be afraid to put anything in with them for a month or two, til they look better.

 

[emeraldking]

do you see any problems adding some Sail Fin Mollies to my hard water tank???​

I read your post and the situation should be okay for them.

 

[Magnum Man]

@GaryE yup… flag fish didn’t look good… now I think at least the Madagascar rainbows have ich… and T least one of the yellow rainbows

Salt to treat that???

 

[CaptainBarnicles]

Bump up your temperature, I think 30°c or higher? Someone will confirm. The heat will kill off the ick over a couple of weeks

 

[Magnum Man]

I’ll bump that up tonight

 

[Magnum Man]

Just bumped it up to 86 degrees F think that’s equal to 30 C