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Message: <blockquote data-quote="KellyGee" data-source="post: 10614375" data-attributes="member: 182272">In our previous tank we picked up Ich and Velvet from not quarantining our fish. After losing half of the fish and having to rush together 3 proper hospital tanks for corals/fish/inverts we vowed to do anything we can to avoid that in the future!Now 9mo into the current tank setup (90gal) and we QT everything that goes in tank (fish, corals, inverts). When setting up the tank we used bleached dry rock and rinsed live sand. It’s been running well and we have finally gotten the parameters stable with daily testing after a bout with dinos (identified through a microscope). Been through cyano, dinos, GHA, and back to a combo of cyano and GHA we are concerned we don’t have enough biodiversity from our sterile setup. We’d like to add 20-30lb real live rock from Tampa Bay Saltwater but are hesitant on dropping that into our tank directly and potentially introducing fish disease.Would fallowing the live rock for 76 days kill off a lot of the biodiversity? Are many people getting fish diseases from introducing live rock to their running display tank? There’s always a risk with anything we don’t fallow, we know.While we really want to avoid fish disease, we’re more worried about keeping the tank’s biome healthy.</blockquote>