So I have a Fluval Chi and a couple days after introducing my betta to the tank, he just laid on the gravel and I thought he was dying. I stopped the filter and a day later, he was as happy as could be, so I assumed the fluval's filter was too strong. I went out and bought the TOM internal filter for nano tanks (rated at a max of 45gph, with adjustable flow). He didn't seem to like that either, he hid in the ornament all day. So I then baffled the filter intake with aquarium sponge...and he STILL doesn't like it.
Has anyone ever had this type of experience? If I just leave it on, do you think he'll get used to it? Or will he never be able to have a filter in the tank? I really want a filter in there with him to get rid of the debris that floats on the surface...it's not a replacement for water changes, I still do 2x water changes on all my tanks.