Originally Posted by Oldfishlady
The beneficial bacteria are sticky and adhere to all the surface areas within the tank, in the top layer of the substrate and in the filter media...very little is in the water column itself and so removing all the water shouldn't hurt the cycle, however, you usually don't need to make 100% water changes anyway.
Is there a typical amount of surface area needed for enough bacteria? Like a certain ratio of gallons to fish to filter, or something like that?
Also, I know that drying out the sponges and rinsing off the decorations/plants with untreated tap water is very bad (because of the chlorine) and will kill the BB...but just how tough is the BB? Is it very delicate, or like most bacteria, is it fairly resilient?
And one more question, sorry, so in a filtered tank, do you ever make a 100% water change?
Thanks for this AWESOME sticky. So very helpful!! :D