Spreading ich into other tanks

[CiwisAquatics]

So, I made a REALLY dumb mistake while feeding all of my tanks today. I found ich on my newest rescue betta, begun treatment today, but when feeding them, I started with him & without thinking, I put the pipette into the water, then went along and fed all my other tanks the same way. Do I have anything to worry about? Should I add medications to all 8 other tanks? How should I go about dealing with this?

 

[DoubleDutch]

No keep medication on hand and only start treating when there are clear signs

 

[ProfessorSycamore]

Good to see someone else from petscord on here

Like I said there it'll probably be fine but a small dose of the medication in the other tanks probably wouldn't hurt anything. Could always just keep an eye out and then treat if you see anything