What size do you want?

[JonT]

Voted for the smaller one. My tank is "large" but not big enough to use the "value" sized foods. I buy all food in smaller containers so that it doesn't go bad sitting there.

[Aqua-Digital]

Good point

One thing we will be doing is a multi nutrition mix that has all the food groups in one tub, so in your instance I think this would be perfect in 100ml (4oz-ish)