If all my parameters are good can I skip water changes? I have a 10 gal with 5 neons and 3 guppies (I know “too many fish”) it’s fine. I currently have 11 full size strong and healthy plants in there as well. I test my ammonia, Gh, kh, ph, o2, o3 every other day. It’s too often, but my hyper fixation won’t allow me to spreed them out. 🤷♂️
I also have a sponge filter along with an aqua clear HOB filter.