I bought my BGK a couple months ago at 3". Now it's about 5.5". Is that normal? Above average? Or should I be expecting more? I feed one cube of blood worms per day and I do daily %40 water changes.
It's expected. Overall it's slow. I guess about .5in per month till the 8-10 inch mark. Once it hit about 8-10 inches then it kind of stalls for a long time. It'll vary with CB fish cause the markets are flooded with them.