Does anyone know what this slime in my axolotl tank is?

[Bri the axolotl mom]

Yesterday morning this was not know my sweet potatoe that I have in my axolotls tank. Later at night came back and it was all over the roots.
How can I get rid of it?
Is it hurtful to my axolotls or shrimp in there?
I just have hught nitratos. I have to do a water change after work but my axolotls look fine. My oldest one didn't wanted to eat yesterday. Can it be due to the slime looking thing?

 

[Bryan4386]

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[axolotl nerd]

Yesterday morning this was not know my sweet potatoe that I have in my axolotls tank. Later at night came back and it was all over the roots.
How can I get rid of it?
Is it hurtful to my axolotls or shrimp in there?
I just have hught nitratos. I have to do a water change after work but my axolotls look fine. My oldest one didn't wanted to eat yesterday. Can it be due to the slime looking thing?

looks like either fungus or biofilm

 

[Bri the axolotl mom]

looks like either fungus or biofilm

Thank you I ended up throwing it away because it was stinky and didn't looked healthy