Re: Nitrifying Bacteria
But you can also look at this scenario. Which I am stating from experience.
75 gal ran for 2 years with filter. heavily planted, sand substrate, full of endlers and bristlenose. One day I pulled the filter and left it off, never had a mini cycle or any kind of spike. Water change once in 8 months. ran the tank 2 years this way till I moved houses.
Whether you have a spike or not changing things out depends on surface area of what is staying. Plants, deco, substrate, glass and all will have bb on it, and if there is enough of this, there will be plenty of bb to sustain the tank. Same reasoning with filters. If the filter has lots of area to and not enough areas in the tank you change filters or loose the filter you will go through cycle. But if your filter has plenty of areas in it, you can change out everything in the tank and not see a cycle.
If this looks like rambling it probably is because I have taken my meds. But it gets the point across.
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