No problem with asking me questions, I am happy to help if I can.

There are many differing opinions on supplementing, based, I believe, on the fact that no-one really knows how much in the way of vitamins and minerals amphibians consume or need in the wild. I tend to rely mainly on feeding the insects good quality materials - grains, fruit and veg - in the first place, and supplement sparingly BUT with toadlets, I would supplement at every feed (Daily). I use 'Cricket Diet ILF (Insect Loading Formula) made by T-Rex, onto the food and then a little onto the insects, with a twice weekly addition of some calcium power. And for youngsters, lots of use of fruit and veg with a high colour pigment, orange/yellow/purple, so they can develop their red bellies.

Colour change is interesting in FBTs. They can to some extent mimick the substrate, and humidity changes will sometimes produce change, but I am sure there is a link between colour change and mood. I have two individuals who spend a lot of time together, and I noticed that if they get seperated, they both go dark green, and once united, go light again! Are they expressing anxiety when they darken? I did once try to discuss this with the vet but he tactfully suggested that I get out a bit more.