Hello all new to the forum and somewhat new to amphibians. I have been thinking about buying my first frog for a while now and am considering Darts as a first, Dendrobates Auratus to be specific. Now I have been doing a ton of research on Dart's and many other frogs so that I will know how to take care of them.

I just have a few questions about Darts. As of now I have a 20 gallon tank I will house them in if I get them. I plan on making the Terrarium for what ever frog I purchase before I actually get them so that I will know if it will be right for them. I will be checking the humidity and temp levels for a while before I make a purchase as well as stocking up on what I will need to create the Terrarium and take care of the frog. I am fairly certain that I would be able to properly care for them but I dont want to get in over my head, hence why I am doing tons of research.

As for the questions, Is what I stated above a good Idea to do before getting the frogs?
Also I know that Dart's are mainly fed wingless fruit flys however I have seen people feeding them spring tails. Is this a good food source for them? As for the species Dendrobates Auratus I am under the assumption that you can keep multiple unsexed frog's in one Terrarium? If so would 2 to 3 maybe even 4 be alright in a 20 gallon tank?

Also even though this will be my first amphibian I have helped care for them before and know a little about what they require to live and be healthy. Also keep in mind that I am still doing tons of research before I purchase any frog.