trying to get that happy medium
by not having a 60mph current in the tank.
The bacteria is also in the sand/gravel, and plants help a well if there is a high flow rate through the filter.
Funny thing is with one of my angels, it will swim near the bubble wand, and from what I have read angels don't like a lot of water movement cause of their body shape. Maybe I have a thrill seeker and it is the fish version of a roller coaster
I forget when I got my first aquarium, 10 to 12 months ago. Amazing how much I have learned since then. Mostly thanks to coming here.
Oh I did seem to have a fungus outbreak in my one tank. Fish dying with no symptoms, but would be covered with white cottony fuzz after they died (had been sitting a few hours while I was either at work or sleeping) and the water parameters were fine. I did dose the tank....
..after dosing the tank I waited the 24 hours, did the PWC
and then slit the filter media bag to add new carbon. So far so good.