Good source for aquaculture troughs?

[Flatlandreefer]

Does anybody know of a good source for rectangular troughs that could be used as a grow out system? I found some at pentair and they look decent but they only come in a blue color, I am looking for white if at all possible.

 

[Reefing Madness]

 

[reefwiser]

Hydroponics are your friend.
https://growershouse.com/flood-tables-trays-for-hydroponic-growing