I know you typically feed adult poison dart frogs 3x a week. However my questions are what supplements should I use, and how often with those 3x a week feedings. I know they need a calcium supplement, vitamin supplement, and a mineral supplement. What are the best and most common used brands, do I have to seperate the calcium, vitamin, and mineral supplements? Is there a 3-in-1 supplement or that isn't safe? I have read that you should refridgerate supplements, and replace the supplements every 6 months, is this true? Thanks.