amphipods and calcium

[kmk2307]

I am setting up an amphipod breeding tank at my school and I am wondering what is the best calcium level for amphipods? Its goin to be a 10 gal tank w/ 20lbs of LR w/ lots of plant goodies, gam. shrimp, 2 green emerald crabs, and some trochus, nerite, turbo, and strombus snails . I would assume a little over 400 would be fine but I'd like to make the breeding as efficient as possible without harming the snails or crabs.

Any other suggestions to increase the efficiency of breeding gam. shrimp? I'm gonna have some ipsf ulva in there along with the Live rock and i'll add a typical reef trace element product (kent marine I think).

Thanks,
Kevin