I went exploring Manoa stream (Manoa falls trail) last week and saw a few freshwater shrimp (looked like wild neocaridinia), crayfish, and a regular pleco. Never saw any Dojo eels up there though. Another stream I went to in the past was a stream in Kaneohe that had lots of different cichlids (five star general, red devil, etc. even small mouth bass), vallisneria, and CHOKE plecos. There were so many plecos that when wading through the stream, they'd occasionally bump into your ankles (the 8+inchers hurt!). I'll try to remember how to get there again..