Just bought two 2.5 Mini Bow's to upgrade two of my Betta's from critter totes. I've heard that you cannot cycle anything less than 2.5 gals. When I filled them up, they were only slightly more than TWO gallons, and I do not have that much gravel....anyways...will they cycle, in theory?
Also, the light fixture is 50% over the filter, cutting down on available light. I replaced with a CFL. Other than the disadvantage of less light, is there a benefit to lighting the filter cartridge? or is this just a flawed design? Do the bacteria like the light?
I placed a small piece of old filter material in each from one of my 5 gal tanks. It's only about the size of a half dollar. Will this help much? The 5 gal Betta is healthy, BTW.