75 stock and set up - Page 2 - Tropical Fish Keeping - Aquarium fish care and resources
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post #11 of 21 Old 10-19-2011, 12:57 PM
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Thank you, I understand that they are from two different genus. They are from the same family and subfamily, Poeciliinae. I'm not entirely sure how it would work, but I know that there are accounts of the interbreeding, reliable or not I am unsure. I am simply passing along information that I've found, if the OP wants to pursue it. And I understand that you are doing the same. We're both on the same side, just trying to look out for the fish welfare. So we have different information, and we've said our parts. Like I said, I hope I'm wrong and the information is faulty, but for the fish welfare I felt obligated to pass it along so that the OP could investigate if he/she so chooses. Happy fish-keeping, everybody!

"My dither fish need dither fish!"
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post #12 of 21 Old 10-19-2011, 01:29 PM Thread Starter
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Originally Posted by MinaMinaMina View Post
Thank you, I understand that they are from two different genus. They are from the same family and subfamily, Poeciliinae. I'm not entirely sure how it would work, but I know that there are accounts of the interbreeding, reliable or not I am unsure. I am simply passing along information that I've found, if the OP wants to pursue it. And I understand that you are doing the same. We're both on the same side, just trying to look out for the fish welfare. So we have different information, and we've said our parts. Like I said, I hope I'm wrong and the information is faulty, but for the fish welfare I felt obligated to pass it along so that the OP could investigate if he/she so chooses. Happy fish-keeping, everybody!
Of course the welfare of the fish are the top concern. I think some facts are based upon experience. And fish do contain different personalities. If the fish aren't compatible I wouldn't keep them in the same tank, but so far from my experience with the room they have they all are doing fine. If a problem occurs in the future I'll correct it and move the fish.
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post #13 of 21 Old 10-19-2011, 01:43 PM
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On the issue of cross-breeding, I cannot be definitive but when I recently researched the scientific literature for my revision of the Platy profile, I did discover that platy should never be housed with other livebearers, since it will interbreed especially with swordtails and the other platy species, but also with the guppy. Molly was not specifically mentioned, but (currently) the molly and guppy are in the same genus.

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Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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post #14 of 21 Old 10-19-2011, 01:46 PM
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I personally would not recommend an undergravel filter in this case. Especially if plants are intended. A canister rated for the 75g would be in my view a better option in filtration.

Byron.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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post #15 of 21 Old 10-19-2011, 02:03 PM Thread Starter
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Would cross breeding put the fish itself in danger? Or would it just have babies that won't survive? What would happen exactly?

And I was considering a canister. Might work out better in the long run
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post #16 of 21 Old 10-19-2011, 02:07 PM
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cross breeding is often how some of the interesting varieties occur, especially in swordtails and platies. there should be no danger to the parent, the offspring can sometime be infertile, but mostly a lot of the times crossbred fish are just not wanted in the fish community as a whole. i believe there is a lot of problems with this in some of the cichlids, but i don't think it is quite as bad with livebearers.

**I freely admit that most of the information I share I have learned from other people on this forum and am simply repeating. I thank you for sharing your knowledge and ask that if I say anything incorrect someone will kindly correct me**
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post #17 of 21 Old 10-19-2011, 02:14 PM
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Would cross breeding put the fish itself in danger? Or would it just have babies that won't survive? What would happen exactly?

This question is delving into a knowledge of biology beyond mine. But I do know that in many cases, cross-breeding results in offspring that are themselves infertile. I'm not saying it will here; I understand that the common Guppy and Endlers livebearer do live together in at least one natural habitat, and ichthyologists are fairly certain they do not naturally inter-breed. But in aquaria when forced, they have, and some aquarists report supposedly fertile offspring, others say no.

Obviously, the two platy species and the swordtail will cross-breed with fertile offspring; we would not have the multitude of colour varieties today if this were not so.

As I mention in our guppy profile, some current ichthyologists are proposing that the guppy be moved to a distinct genus rather than being kept as a species in with the molly species (of which there is more than one). This would suggest these two fish (guppy, molly) are perhaps not as closely related as once thought.

Byron.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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post #18 of 21 Old 10-19-2011, 02:28 PM Thread Starter
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as long as the fish aren't in any harm themselves, then i'll continue to keep them together. they aren't aggressive towards each other, and the infertile offspring will most likely be cannibalized.

i appreciate all the feedback guys
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post #19 of 21 Old 10-19-2011, 08:01 PM
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I'm still using my UGF Byron . I'd pick a different lighting fixture. Go with one that uses 4 foot tubes. From the picture, it looks likethe one you selected takes 2 footers. Also make sure whatever you choose has at least 2 t-8 bulbs if you have live plants. I'd also go with a cannister filter. I have the Ehiem 2217 on my 55gal.
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post #20 of 21 Old 10-19-2011, 09:24 PM Thread Starter
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I'm still using my UGF Byron . I'd pick a different lighting fixture. Go with one that uses 4 foot tubes. From the picture, it looks likethe one you selected takes 2 footers. Also make sure whatever you choose has at least 2 t-8 bulbs if you have live plants. I'd also go with a cannister filter. I have the Ehiem 2217 on my 55gal.
i think some tanks will stay biologically stable w/o a ugf, although i was considering a RFUGF for the saltwater i plan on having. yea i was reconsidering the lighting too, i don't really care for hoods, i'd rather have a glass top and strip lights. and i was actually looking at the exact canister model today lol
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