lol $5 for 20 days of feed if you give one a day
doesn't seem to be to expensive to me, i have 4 tanks and use 2 cubes PER tank every day and all 4 tanks they are gone within a minute,
how much are you actually going to save freezing your own? is it worth the effort?
i am in the UK and i think average price for them is £1-50p-£2
i always soak our cubes in water before dropping them in the water, numerous fish have then more chance of getting some, a cube dropped in could be swallowed by one greedy fish