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El Natural Diana Walstad's low-maintenance, soil-based 'El Natural' method for keeping plants and fish.

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Old 12-20-2019, 07:51 AM   #11 (permalink)
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Default Re: Guppy Breeding Tanks

I'm getting 25% male:female ratio on my endler hybrid. There was a post on a scientific article on sex ratio here but I can't find it.
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Old 12-22-2019, 04:23 AM   #12 (permalink)
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Default Re: Guppy Breeding Tanks

There are genes that determine sex ratios. These genes can be disrupted. Here's link to scientific article on MSD (Maternal Sex Ratio Distorters).

While we're at it, I've just got to show pictures of my females guppies. These are samples of the F1 from a Blue Grass strain that I imported from Thailand (ATFG) last summer.

No chance of confusing these beauties with Mosquito Fish!
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Old 12-22-2019, 02:40 PM   #13 (permalink)
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Default Re: Guppy Breeding Tanks

Wow! I have serious guppy envy.
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