Harmful or beneficial flat worm?

I know some species of Planaria worms are harmful but how about this one? First one i have come across

There is a good amount of beautiful shrimps in this tank

u/KouroshBozorg — 14 hours ago
▲ 13 r/mantids

Theopropus Sinecus Adult male with a bent mandible

Still eating like crickets are free, forever the crooked lip

u/KouroshBozorg — 7 days ago
▲ 342 r/mantids+1 crossposts

Theopropus Sinecus I5 female

She has molted now twice in a month. We are going too fast have to lower the temp and calories

u/KouroshBozorg — 2 months ago
▲ 75 r/mantids+1 crossposts

Theopropus Sinecus I4 Male

Almost impossible to control these guys now

u/KouroshBozorg — 2 months ago