Stomach Eel

This stomach eel was recently pulled out of the dylanus's body, about 2 hours ago, and is dead now due to lack of stomach acid to swim in or food.

Stomach eels, also known as stomach fish or parasitic eels, are omnivorous genetically engineered subspecies of fire eels that lives in the digestive systems of wild dylanuses and domestic dylanuses. When these fish were first created in a lab by humans, the humans planned to use these edited eels to help the dylanuses with occasional stomach aches and problems, but these eels only created a little more problem. Even though these eels do not harm or kill dylanuses, the eels can cause discomfort in the dylanus's stomachs and can sometimes cause pain in the dylanus's stomach when the eels lay eggs in the dylanus's stomachs. When these eels go inside of dylanus's digestive systems, they make them their permanent homes due to abundance of food and their new tolerance to stomach acids. Their average lifespan is usually about 1-2 years, when (unlike any other animal) they willingly choose to die from old age to prevent overpopulations in dylanus digestive systems. When they die, their bodies can be disgested. They are all self-producing females, so they don't need males to breed and can lay eggs all year round every egg laying, usually laying about 500 eggs once a month. About 12 hours later, the embryos of these eels can grow fast, hatching into new eel fries (baby eels).
Fire eel

Stomach eels look very much like this, a natural fire eel, but stomach eels can survive and thrive well in the acidic stomach and is also omnivorous.

They can disperse their eggs and young in urine or dung of dylanuses to easly infect other dylanuses. The waters can be contaminated by the eggs and young of the eels. To kill these eels without having to wait for the eels to die from aging, the dylanuses will have to not eat food for 12 hours, that way an eel will die from starvation, at the same time, hatchlings of eels will quickly die off due to lack of parental care from their mother. The way that dylanuses know that their digestive systems are filled with the eel is if their stomach growling is more frequent and louder than normal. These eels are omnivores that feed on all kinds of food the dylanuses eat.
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