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Molly/guppy compatability?

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Molly/guppy compatability?
Old 06-06-2012, 05:10 PM   #11
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Well, right now for filters I have two sponge filters and a smaller ten gallon HOB filter. [but from experience, it's more a five gallon]

I do have a 34 gallon, I need to do some serious cleaning on it, it's been in my basement for a while.

Would that one be okay for both the guppies and mollies?

And I wouldn't say I'm purposely keeping them in non optimal conditions, just that I'm inexperienced with live bearers, and can realistically say I'll make a few mistakes til I get it right.

Does it matter if the tank is longer or taller?

At least I have two weeks to finalize my plans!
You guys are so helpful!!
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Old 06-06-2012, 05:19 PM   #12
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I was only poking fun at you about the optimal conditions. Yes, the 34 would be good. Long is generally always better than tall, but 34 gallons is a lot better than 5 or 14, so no matter what it's the best choice.
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Old 06-06-2012, 05:30 PM   #13
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I know you were poking fun, just clarifying! I feel a little bit lost, ive never really kept anything besides bettas, and my moms goldfish, which i thankfully got into my pond, and am looking for a much bigger tank than what they were in. [My mom doesnt subscribe to the goldfish get freaking big program, and is convinced that her goldfish and koi are at thier healthyist...thier two years old, and the smalled koi is three inches and the other two are 4.5 inches, the koi are five..i try..but shes stubborn!]

The mollies are so beautiful! Not that the guppies arent [i got a natural colored male guppy!! o.O] But i love the mollies little mouths, and the dalmations

And i just remeasured the tank, and its actually a 24 that still okay?

And how do you tell if the mollies are pregnant? I belive my orange one is...
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Old 06-09-2012, 12:24 PM   #14
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A couple of points I've read in this thread need some comment.

First, yes it is true that guppies and mollies can cross-breed, however, it doesn't happen very often. In addition, if molly males have access to molly females, they'll ignore the guppies. Vice versa is also true.

Second, mollies are not especially messy fish, but they are very sensitive to low levels of ammonia and nitrite. This is knowledge from the past several years. They need more frequent water changes and lower density stocking than is common wisdom for most fish.

Third, mollies are brackish fish, period. They can be acclimated to fresh and marine, but they tend to be much healthier in brackish water. This is possibly because ammonia and nitrite have less effect on fish in brackish water. If your tap water is liquid rock, the hardness can take the place of the salt. Never keep them in soft or acidic water.

Fourth, there is more than one species of molly. The most common are Poecilia sphenops and Poecilia latipina. Most of the mollies you find in pet stores are called sphenops, but in reality are hybrids of sphenops, latipina, and who knows what else. Sailfin mollies kept in good conditions will get big, four or five inches. Sphenops will not get that big.

Fifth, believe it or not, guppies can also live in the same brackish or marine conditions as mollies.
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Old 06-10-2012, 02:33 AM   #15
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I do have hard water, so that's good.
If there's not one species, I'm not sure which ones I have! Not sailfin though.
I have two Dalmatian ones a whit and a golden yellow.

My LPS doenst keep salt water or brackish fish, so I'm sure these mollies are used to fresh water.
I'm nervous about brackish water though, I've never looked it up or tried it.

Ive been doing 30% w/c a day and my amonia levels are staying 0, so I'm glad for that.
I'll keep an extra close watch on that! Thank you!

And I would've t actually want Muppies, since I'm trying to get a first generation stable for breeding, and from what I've read Muppies are sterile. Maybe down the line I'll mess around with Muppies, but for right now, I'm stressing enough about the fry I've got!
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Old 06-10-2012, 08:40 AM   #16
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Hard water should be fine. You might add a little aquarium salt (only because the trace elements are probably already in your water and it's cheaper). You probably don't need to go brackish, mine are in tap water. Your Dalmatian mollies are almost certainly sphenops. Those are by far the most commonly available.

Muppies would probably be a serious long term project, and I don't kow if they are sterile or fertile. I suspect sterile because you just don't see that many muppies around.
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Old 06-10-2012, 06:25 PM   #17
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The only reason i would breed muppies is to see what the fry would look like. Ive heard that you can get a variety of looks from the fry. from molly heads and guppy tails, to dalmation guppies and anywhere in between.
I wonder..could you get a molly with the guppy natural? the one with the patchwork of colors? I think id like that.
Everywhere Ive read says muppies are sterile. Occasionally a few will court each other, but i havent read of anyone whose gotten muppy fry.

So your saying that my mollies wont get 5-6 inches?

How much AQ salt should i add? one teaspoon per gallon? Guppies will be able to live in this? What about Ghost shrimp? Their sensitive to changes, should i build up to half that amount?
Apple snails okay in hard water?
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Old 06-10-2012, 07:11 PM   #18
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Mollies, guppies, and ghost shrimp can all live in brackish water no problem. In fact, I bought ghost shrimp specifically because they can live in brackish water. Apple snails (aka mystery snails), on the other hand, are sensitive to salt, so if you have these in your tank, you can't add any salt.

If your mollies are the typical petsmart variety I doubt they'll get much bigger than 2-1/2 inches.
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Old 06-27-2012, 03:41 PM   #19
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If you want snails, you can look into Nerite snails - they like salty/brackish conditions, and can actually ONLY breed in a salted tank :)
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