Problem .. Please help
Hi. I have a big problem .. There are a lot of worms in my aquarium. they are small and white. I cleaned aquarium. I changed the water completely. I washed sand and filter with boiling water. Even if I cleaned basking area. For 2 days did not have the worms. But today there are more worms in the aquarium. I do not know what to do. Would you please help me, about to destroy the worms
If you look carefully you'll see the worms in these photos :




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If you look carefully you'll see the worms in these photos :




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