Exactly. This is why I said "Grind it up nicely- now this is a bit tricky, because I want my mix to be small enough to fit through my feeding syringe, but not so small that it just dissolves in the tank water, so you might have to do this a few times to get it right
." On the initial instructions on the first page
I wouldn't add lettuce to mine. Too much water IMO
. Nori would be better if anything.
...and no-you don't have to stick to my recipe exactly. I don't add the exact ingredients each time. It all depends on what's at the supermarket.