How to get rid of hydra?

There are a ton of white coloured spots in my tank
Most of them are sticked inside the glass of the tank and some of them are on plants and driftwood
When I look closer I can see there are lot of tree like things in a single spots
When I did some research I found out about hydra
I think those spots are groups of hydras
Please tell me how to get rid of them

Fenbendazole (Safeguard or Panacur dog dewormer) available at petco, petsmart,etc. Dose at 0.1 gram per 10 gallons. Kills them all overnight and does not hurt anything else in the tank.

Can't tell anything from the pictures.

Do they have tentacles?
If not, they aren't hydra. Hydra look like small brown, green or cream coloured sea anemones.

Have a read here--> Eradicating Hydra and Other Pests with Flubendazole

Colin_T said:

Can't tell anything from the pictures.

Do they have tentacles?
If not, they aren't hydra. Hydra look like small brown, green or cream coloured sea anemones.

Click to expand...

They're really small so it's really hard to take better pics
But I'll try though