Found this wood around my house. Originally used for growing orchids a very long time ago. No idea what kind of wood it is, no idea exactly how old it is. No odor, left out in dry Southern California weather for 10+ years next to some cacti (washing off the spiders gave me a heart attack!), becomes very soft after being exposed to water. Pictures show it wet since I had to clean it off. Sorry if it seems grainy or it looks like there are white dots. Those are just water reflecting light. There seems to be some dried and hard yellow nonsense coming from it (sap?). None of the stores near me sell an older BN pleco, so I'll have to buy one that's practically a baby (less than an inch long), so I'm not sure if the Zoo med Mopani driftwood or this random piece will be fine. What sort of wood should I be looking for for a BN Pleco?