cross contamination

Hi everyone, I know there are multiple threads on cultivating phytoplankton however I wanted to create my own so I can document along with receive guidance on my journey! Please provide advice if you have experience because I would love to improve my current process! If there is anything you...

I’m using Cupramine in a quarantine tank to treat ich or velvet, unsure. I have a heater in there a HOB filter and I moved my MP40 to the quarantine tank also. My questions are around Cupramine or copper getting into things and then I can’t use them again. I want to be able to move my MP40...

After a loss in QT, I'm paranoid I may have absent mindedly contaminated the DT by feeding the DT after feeding QT without washing up well enough. Fish are all eating well and active. I've noticed some of the fish apparently "tagging" the powerhead once in a while. One of them will pop up into...