What does dish-soap do to Betta fish? I've heard it's deadly to them.
The reason I ask is, I hurried and dusted off the stand where I keep my two Bettas and I got some cleaner on my hands and then before cleaning my second Betta's tank I washed my hands with dish soap, and when rinsing them (my hands), I had one of my heaters in the sink. The bottom "rubber" part of the heater MAY (most likely not) have gotten a few soap suds on it. I rinsed it a few times with scalding hot water, but I want to know if it would mess with the water quality, meaning when I go to test the water if the soap would mess up one of the levels to indicate whether it's safe or not or if it's a hidden chemical that won't appear in my tests.
Sorry if this is confusing.
Thank you for any help!