11-23-2010, 04:21 AM #1
guppy longevity in isolated gene pool
that title sounded like a journal title o_o
Anyway, being just a little curious I thought that I'd ask this. My sister has a guppy tank and the majority of the guppies are second generation. I know they are going to in-breed and I was curious to see if there are any problems the third or fourth generation fish might have besides the lack of color. I keep urging her to just get a couple more males to keep the fish looking good.45 Gallon Community
Blue three-spot Gourami
3 Angel Fish
3 red wag platy
10 Gallon Clawed Frog
1 African Clawed frog
11-23-2010, 05:37 AM #2
Interbreeding is not catastrophic. All the breeds man's created have come from selective inbreeding for specific traits. With Betta it's typical to breed Father to Daughter(s) and even Father to Grand Daughter to get the colours and traits concentrated. The only problem is that you're compounding all traits, good AND bad. If the fish your sis has are strong, low in genetic problems then it's likely that they'll be just fine and produce beautiful offspring. A wider gene pool is always preferable when breeding for hardiness. This is why mutts tend to be very healthy dogs because they have a wide gene pool.
Last edited by Sarkazmo; 11-23-2010 at 05:44 AM.
1G Planted Betta tank, 1.5G Planted Betta tank, 10G Planted Swordtail Fry tank,
10G Neolamprologus Multifasciatus (Shell Dweller) tank. Empty/Work in Progress 135G, 40GB, 2 x 20GL, 2 x 10G
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