I was curious to see what type of seed pods everyone uses in there vivs. Ive only used monkey pods and coconuts. I have wondered how well a lotus pod would do though.
I've mainly just used small to medium Brazil nuts...at least I think they were. I never say a pumilio using them...a vanzolinii did once - to sit for a while, but no reproduction.
In any case, I would coat the insides of any nut or pod with black aquarium sealant to lengthen the life of the pod as well as help it hold water.