Is my tank suitable for a BTA?

[Delphinus]

Originally Posted by Buk_A_neer

I agree that you can find them in shallow water but the flow in the ocean/sea is more of a push/pull effect which is very different from the effect of the powerheads/closed loops that we employ to provide flow which has a more static flow

Yeah, sorry, I should have emphasized the surging flow part of my post more. I did mention that part though:

Originally Posted by Delphinus

Generally speaking anemones need flow. It's the type of current that is an issue. [...] You can find them in 5 feet of depth at the reef, there's plenty surging wave action at that depth, [...]

I think a surging and alternating flow is more appropriate for anemones of most types. Just look at our own west coast in fact: look at the where you find the anemones and where you don't. On the rocks on the beach on the exposed ocean side where the rocks are pounded and pounded; whereas in sheltered inlets where you might have some wave action but mostly it's just tidal flow, you'll find a hugely different array of animals inhabiting each zone.