What would be the minimum depth to house a RTC in for a homemade pond? I am looking at building a large footprint pond that is shallow to maximize the needs of a large catfish. What would be the optimal diminsions for this keeping in mind that the weight of the setup is the most important. Let me know what you guys think. I was leaning towards something like 14"H x 28"W x 60"L? I dont know what normal floors can support.