Hi:
my vote is for the snowflake, only becuz of your tank size. I personally have zebras and consider then totally fish safe. Snowflakes i consider maybe fish safe, especially as adults. But snowflakes are smaller and slighter and will fit into your setup better.
As far as a green wolf eel or blenny. I say no way. Your choice of course, but these little green fish, are trained fish killers. I had one which reached over 12" long, thick like a bike innertube and would potshot my fish. He also ate a medium sized bicolor goatfish, and a few otheer choice fish.
I wasn't too pleased w/ the green wolf eel
frank
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to see my 180gal tank of lions
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