So I've have been pumping co2 in my 60gal (48x13x24) for maybe 3weeks now. I'm only at say 4-5 bps, using an azoo regulator with a fluval bubble counter. I'm also using a ceramic disc to disperse to co2. It seems like every time I adjust it my fish start to breathe faster but they don't hang out at the surface, they swim normally. It's mostly my rainbows and angel, but the sae , corys and Molly's don't seem to care. I just want to get my co2 up as I'm about 20ppm per the kh/ph chart, drop checker should be here by tomorrow. Plants look ok but I know they could look better. I'm at 40par with the lights.
So is this length of time normal? I feel like this is taking maybe too long?