Hi, im new to tortoises. Iv just bought a 4 month old horsefield. Its in a 24"18" vivarium with a quarter of the back cut off for air to get in and out. Iv got a 50w red heat bulb and a UV strip bulb. Could anybody tell me how often my lights should be on and what the temperature should be. Im feeding him a salad mix it looks like little pellets? is that any good or should it be on veg etc. Thanks.