You don't need ANYTHING. the dieoff in your live rock is completely sufficient. REmember what you're encouraging is microscopic: you won't see it. If you can't stand adding nothing at all, add enough flake fishfood daily to feed one guppy (one flake), and STILL expect a cycle of 4-8 weeks. You simply cannot get bacteria to propagate clear to the core of the rock in less time than that, and if you rush it, you can crash the tank.
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Sk8r
Salinity 1.024-6; alkalinity 8.3-9.3 on KH scale; calcium 420; magnesium 1300, temp 78-80, nitrate .2. Ammonia 0. No filters: lps tank. Alk and cal won't rise if mg is low.
Current Tank Info: 105g AquaVim wedge, yellow tang, sailfin blenny,royal gramma, ocellaris clown pair, yellow watchman, 100 microceriths, 25 tiny hermits, a 4" conch, 1" nassarius, recovering from 2 year hiatus with daily water change of 10%.
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