Bill, one of my goals after doing some extensive work with MBA was to try any replicate some of the tide pool species for smaller hobby systems.

I have a 50 Cube I'll be soon working on for this at home here.

I did a similar thing when I saw the biotope in the Florida Keys(there are 5 or so there).

I think I can do this even easier, but of course need to add a chiller and keep things at about 58F.

Tide pool species can handle rough temps and salinities and low flows, but they still need the torrents.

That is the biggest challenge,the species and nutrients etc, the habitat is right near by so I can check and think about what needs to be done to get things to grow correctly and perhaps amplify the growth.

Regards,
Tom Barr