Tab Hunter is a good'ol fella that just happened to have been tested as FIV+. Unlike FeLK, FIV means he MUST be taken care of by a vet familiar with the care of FIV Cats and who does not jump to euthanize at any sniffle. Although, it is very important to get him to the vet to be treated as his immune system is not as strong as cats that do not have FIV. It is recommended that they be given the best food, the best preventatives, the best of everything...which really is the same as all cats but especially those with FIV or any with other immune deficiency conditions. One of the things that we have had him on since we rescued him is Lysine. We have used the powder kind and sprinkled it in the dry food but however you want to give it to him, is just fine. He has done well with top loading litter boxes with clumping litter but the director of the rescue prefers Pretty Litter for any cat that needs extra percaution as the Pretty Litter Brand may be helpful to catch any UTIs early. Our big boy has not caught on to groooming very well yet so he might like some help in that area. Be Gentle!!! He also has not caught on to being groomed so you might need to do this spontaneously. But Tab is a big old sweet fella. I'm sure you will see so many more traits in this guy. After all the suffering he has had in the past, he deserves only the best match so please give us time to approve you to adopt him. You won't regret it.