1. SW and MP until he's put on some size. In my experience, silvers are the easiest to train onto pellets. Just starve for a few days and soak the pellets in MP juice. Once he puts on some size, the occasional feeder frog (provided it's been in QT for some time) is great for putting on size and improving colour.
2. Black background
3. Black sand.
2. Black background
3. Black sand.