Hi everyone. In my prior life as a vegetable gardener in harsh environments, I used to grow tomatoes and peppers in homemade sub-irrigated contraptions called Earthtainers. The instructions for making them are all over the internet. Basically, they were made from either 17 gallon 31 gallon storage totes. The instructions had you use landscape fabric to cover drilled holes to prevent the soil from getting into the reservoir. I’ve also seen a system for sub-irrigated containers using two 5 gallon buckets nested inside each other. I think they were called global buckets or somesuch. Anyway...look ’em up...they’ll give you a few more options for the size of containers that you can use for your grows.