different types of algae eating hermit crabs?


Manhattan Reefs
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Queens, NY
Hi all, since I'm all about hermit crabs now,
There are red legged crabs from Mexico (west coast?), which seems a bit more expensive
And blue legged crabs, from Florida which are a bit cheaper.
And I went with the "others" random category, which are well, not red or blue, but also collected from Florida.

Anyone have any opinions on which are more effective or not? As far as I know the red and blue legged both eat hair algae effectively, but which are less aggressive towards each other or snails?

And now since I have over a hundred of the "others" I'm wondering if I should have stuck with blue legged ones.