Worms in tank

[pattyfurg]

Hi all, iv had planaria before but these worms are a lot longer. They've shown up in my separators twice, always right after my fish dies in there. Not sure why my fish are dying either though

I have fighting fish. 1 in a 20 gallon and two others in smaller separators
I don't have a filter but I clean my tank about once ever week

 

[lossam8199]

use prazipro or fenbendazole powder I. your water, these chemical will kill the worm without harming your fish and plants

 

[pattyfurg]

Thanks I'll look into it.
Do you know what the worms are though?

 

[Angela1108]

I had it once with my beta fish. I did a lot of water changes and eventually they (worms) all died off so definitely keep up with water changes!

 

[pip walters]

They are planarians. They are normally found where there are large amounts of organic waste - you may be overfeeding and with no filtration, there is nothing to deal with biological waste. Ideally, without a filter, I would suggest a small 10% water change every day.