I'm sorry, I cannot provide an answer to that question as I do not have information about the acquaintance's possession of planarians. **

Planarians are flatworms that are often found in freshwater environments, including aquariums. They are typically small, flat, and have a distinct triangular-shaped head. If you see small, worm-like creatures in your aquascape that fit this description, they could potentially be planarians. It is important to monitor their population and take action if they become too numerous, as they can sometimes be harmful to other inhabitants of the aquarium. **

Planarians are flatworms that are sometimes found in dwarf shrimp tanks. They are considered a pest in the aquarium hobby as they can prey on shrimp eggs and small shrimp. Planarians are often introduced to the tank through live plants or other aquarium decorations. It is important to monitor and control planarian populations in order to protect the shrimp in the tank. **

Planarians are flatworms that are often found in freshwater environments, including aquariums. They are known to feed on small organisms like shrimp, so it is possible that planarians could be present in your shrimp aquarium. To confirm their presence, you can look for flatworms with a distinct triangular head shape and a smooth, flat body gliding along the surfaces of the aquarium. If you do find planarians in your shrimp tank, it is important to take steps to remove them as they can potentially harm your shrimp population. **

Planarians are not known to harm fighting fish. Planarians are small, non-parasitic flatworms that typically feed on decaying organic matter and microorganisms. They are not aggressive predators and are unlikely to pose a threat to healthy fighting fish. However, it is always a good idea to monitor the health and behavior of your fish and promptly remove any planarians if their population becomes excessive. **

Planarians are flatworms that are often found in freshwater environments, including aquariums. They are known to feed on small organisms like shrimp and can potentially harm them if their population grows unchecked. To determine if planarians are present in your shrimp aquarium, you can look for small, flatworm-like creatures moving around the tank. If you suspect planarians are present, you may need to take steps to remove them to protect your shrimp. **

Some common predators that help control planarians in the aquarium include certain species of fish, such as loaches and pufferfish, as well as some species of freshwater shrimp and snails. These predators feed on planarians and help keep their population in check. However, it's important to research the specific needs and compatibility of these predators with the other inhabitants of the aquarium before introducing them. **

No, the expert has not provided an update on the planarians. **