you can mix baby food with the diet, but it tends to throw off the nutrient balance, by adding too much sugar. Stubborn eaters can have some baby food added and over time, lessen the amount of babyfood used till you have pure CDG.
As to how much water to add with the baby fruit and powder..about half as much water. If it seems too thick, add a bit more water. I find the diet works best if still a bit watery. Ensures your geckos are plenty hydrated.
For one to 4 babies, I mix about one quarter teaspoon powder to half a teaspoon of water (or one quarter water, one quarter babyfood). I give a small amount of it to each baby gecko. I use pop bottle caps (washed and with the lining removed if possible) and put enough in to cover the bottom of the cap for hatchlings up to a couple months, basically, I keep offering the same amount till there is very little of it left in the cap when I take it out next day. I add a bit more next feeding, to make sure they are not being left hungry.
For 6-8 month old crested babies, I use small ceramic dishes and give about quarter teaspoon each adjusting more or less depending on what is left in the dish the next day.
Right now, with 3 adult crested geckos, 3 adult gargoyle geckos, two 9 month juveniles and 4 hatchlings, I mix about a teaspoon of dry powder for crested geckos, and half a teaspoon dry for the gargoyles. They don't leave much left behind.
THe adults I only feed every couple of days, about 2-3 times a week. young adults every other day and hatchlings every day till they are about 5 months old.
I use straight CGD with no crickets or other additives. Occasionally I offer small silkworms, butterworms or phoenix worms if I have any available.
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PHLdyPayne