I raise several 100 Guppies per season in oudoor barrels for many years. It need around 3.5 to 5 months of good care to get an Guppy on a size that he would be an relevant sized meal.
I always select the ones out that have errors and even there i don't like it because it's wasted energy in many aspects from my time up to water, electricity and food.
You are better there with insects what don't mean that your idea is not ok but the cost to use factor is out of touch
We need to stop talking about the people as if they were the crown of creation.
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