[somewhatshocked]

I think I will use no-planaria and remove them for good.

This is not necessary. You don't appear to have an issue with Planaria. There's no need to keep messing with your tank. Just let it settle and do its thing. You'll have more success if you just leave things alone for a while and have patience.

These are nematodes - detritus worms - and they're common in new tanks. Especially those that are using soil-based substrates. They'll disappear on their own in a short period of time as their food source dwindles.

 

[somewhatshocked]

That's honestly a great way to remove worms from a tank, @Aboy6! And a great tool to have for planted tanking in general.

If you ever find that you do have Planaria in your tank, you could always buy a trap for them. They're usually under US$20 and are pretty effective. That's an option I don't see mentioned much but it's always worked for me.