Завелись черви в аквариуме

Today we'll talk about something that often scares beginner aquarists. You're looking at the glass or the substrate and suddenly notice small white "worms." Some immediately say, "Those are nematodes," others think planarians, and still others decide the aquarium urgently needs chemical treatment. It's actually simpler. The main thing is to calmly figure out what exactly you've got, why it happened, whether it's dangerous for your fish and shrimp, and what can be done.