Mealworm colonies are very easy to maintain. Fill a container with dry bran/oatmeal/cereal/etc. and add mealworms. Supplement with small amounts of vegetable - carrots, apple cores, peelings, etc. But keep the moist stuff down to a low level or you'll get mold developing. As beetles emerge, leave them in the colony. They'll multiply, and a good sized colony can last for years. I've seen successful colonies raised in everything from deli cups to 5 gallon buckets - it's all a matter of how large a scale you want to do this on. But do not refrigerate if you want them to multiply.I would feed your mealworms moist produce that does not rot quickly (eg. carrots and potatoes) in addition to oats. You can also prolong their lifespan by keeping them refridgerated...just allow them to warm up/become active prior to feeding them off because they are more attractive to your tarantulas when they are squirming and active.
No misting or water source is required? Do the mealworms remain sufficiently hydrated from just the vegetable scraps?..............Supplement with small amounts of vegetable - carrots, apple cores, peelings, etc. But keep the moist stuff down to a low level or you'll get mold developing..............
No misting whatsoever. A baby carrot a week provides more than enough hydration for a colony of around 1000 mealworms.No misting or water source is required? Do the mealworms remain sufficiently hydrated from just the vegetable scraps?