Damselfly Larvae - Should I Worry?

[jnw1981]

90Ltr tank with 6 Balloon Mollies and 2 Neon Dwarf Gourami up and running for 2 weeks.

Just doing my weekly water change I found and removed what is 100% definitely a Damselfly larvae. Have checked pics. It has 6 legs, approx 15mm long and 3 feather like prongs at its behind.

Do I need to worry about this chap?
Are there likely to be more in the tank?
How did he get there? Transported on plants from LFS?
Is he dangerous to my fish?

Thanks for any help and tips!

 

[OldMan47]

Damsel fly larvae will eat very small fish like molly fry. I would definitely remove any that I find. It may have come in on a plant and may or may not have companions. I would look over the tank carefully and remove any that I could.