Question about flatworms

[sphelps]

If you have a wrasse in your display it's probably preventing them from populating there. If you don't have a wrasse it may be a good addition to consider. Other than that I would leave them, the population is probably at it's peak and will eventually fade out over time. The worst thing you could so is over react and treat the tank, many people have lost entire systems because they treated for harmless flatworms.