Those aren't roughneck tubs from home Depot like he said. Wjat you posted would work great.These 8-13 gallon buckets are what a lot of the hydro guys are using nowadays.
https://sunlightsupply.com/shop/byc...e-container-buckets-8-and-13-gallon-and-lid_1
These are basically what Current Culture H2O systems use.
18 Gallon green rubbermaid roughnecks should work out pretty good correct? Looks like Home Depot has a great price on em right now