Yeah, I avoid particle board/MDF stands like the plague. I never could figure out why companies insist on building tank stands out of material that completely disintegrates when it gets wet!!! Derp.
My current stand = 100% real oak, water sealed.
I'm glad you were able to get your situation fixed before it became a much bigger problem! Plus, those big rubbermaid tubs will come in handy every once in a while. Bonus.
--csb