Good grow out tank set up for jack dempsey fish?

hi i have a bout 3 inch jack dempsey cichlid and i plan on keeping it in a 29 gallon grow out tank for now until it is too large and i will buy it a bigger home. i have 5 fake plants, a small castle for my pleco a larger fake wood ornament with tons of hidins for fish and a few smaller ornaments and i wonder how i should place all of them in the tank to suit the jack dempsey best... he is probably my favorite fish and i want him to live long and be healthy. I am sure that all my other aspects of my tank (like the amount of gravel) is already perfect