Should I just feed more at a feeding so more of it floats down? Won't that "dirty up" my tank?
Yes it sure will. Fish don't need to eat as much as we think they do. In the wild fish sometimes go days without eating. Not only will overfeeding dirty your tank, but it will rot and add to the ammonia load. The rule is all food should be gone within 2 minutes. Food does however need to make it to all feeding levels of the tank. So if none is making it to the bottom, you are underfeeding. What do you have for bottom feeders? Cories? Loaches?
55 gal. livebearers, 55 gal. oscar, 29 gal. tetras, 29 gal. angels, 29 gal. female bettas, 20 gal. barbs, 20 gal. guppies, 10 gal. fry, 10 gal. grow out, 10 gal. quaretine, 10 gal. feeder, (16) 1 gal. male betta
Yeah i'm getting too many aquariums. Maybe I'll stop setting them up after I get a 125 or 180 or 300 gallon...... Sure I will. hahahaha