Well, I got my rocks in last weekend, set-up the tank, and seeded the filter. Added 1 yellow lab, 2 red zebra, and 1 Melanochromis cyaneorhabdos. No ammonia, or nitrites, and nitrates rose from <5, to ~10. 3 days later, my LFS got in new stock, and I got 4 more yellow labs. They were chased...