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The intestine is best visible in transmitted light.Īdult planarians can reach a body length of about 2 cm. Starting from the gullet, this Y-shaped intestine extends with a tip to the head and two tips to the tail. a red-blooded Ramshorn Snail), the planarian’s big, dendritic intestine temporarily turns this colour. If the worm has eaten something colourful (e.G. Other typical body colors are brown, reddish or beige and there are also spotted forms.

Even with planarians with whitish body color it appears a bit more massive than the rest of the worm. Here its expansible gullet is located, by which the planarian flatworm takes in its food. In the middle of the body, the so-called throat spot can be found, which is usually lighter in colour than the rest of the body. They are therefore more likely to seek protection in darker areas in the aquarium, such as near the ground or in the filter. In fact, planarians are quite sensitive to light. With them, this worm can perceive brightness. The most important feature for identification are the two eye spots at the head end. Recognizable by its flattened, uncurled body. Identifying planarian flatwormsĪs THE classic aquarium pest, the planarian flatworm belongs to the order Tricladida. It is more likely that fewer and fewer young will have a chance to mature and thus the stocking will over-age and decline over time and. A planarian infestation certainly does not lead to an immediate mass extinction of the entire stock. But also old and sick specimens or freshly skinned shrimp may be attacked. Here, the size of the prey is crucial, in this respect juveniles and eggs are especially affected. In corresponding amounts, planarian worms can pose a hazard to invertebrates such as crabs, shrimp and snails, but also to fish.

DONT STARVE WIKI ALGAE HOW TO

In this article, we’ll give you some tips on how to detect and combat freshwater planarian worms in your aquarium. However, not all turbellaria species are dangerous to the aquarium inhabitants such as fish, shrimp and snails, as they only feed on microorganisms. As a rule, they live predatory and are therefore regarded as pests in the aquarium. Turbellaria are present in both freshwater and saltwater. This group of animals consists of different species with different characteristics. Planarians are among the flatworms or turbellaria.

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