So, I was at my PETCO store and overheard a conversation an employee was having with a customer. He said not to clean out the entire tank as it kills the micro ecosystem that has set up in the tank.
Now, this PETCO guy said he had been a fish keeper for many years and he even said something about knowing more than most other employees. But I'm curious, is it really true?
Should you just give water changes and only water changes?
But what about all the poop on the bottom, what happens to it?
Thanks for the info!