Hey guys i had a velvet outbreak or brooklynella and killed my 2 clowns in jus 24hrs. I have 4 shrimps, a brittle star and few turbos in my tank. Iv heard that they too can carry diseas, but if left fishless, they parasite of velvet or ich or brook will die in 10weeks however im not gona add any fish for 12 weeks. Iv read that rocks, inverts, corals, etc can carry these diseases. If thts the case then i guess all need to be in qt. So i guess all need a qt setup. For this reason. Do i need to make 3 different setups for fish, corals and inverts? if yes then here are the issues i feel i might have to face. 1) for fish qt tank: im plannin to keep my eheim hob sponge in the main tank all the time and then place it in the filter of qt tank when i get new fish. That way i get the bacteria from the main tank to cycle the qt before the arrival of new fish, N keep then for like 1.5mnths or 2. But if i treat the fish with any medicine, it can killoff all those bacteria and cause more stress to the fish i think.. please let me know if im wrong or right or how can i avoid this problem. And best way to setup a qt tank for fish. 2) inverts qt. Tank As many say that inverts can also carry disease, do i need to qt them? Can i make a setup with some liverock rubble an internal or hob filter or just a tiny wavemaker? Leave them for like 2 mnths in qt. 3) corals qt. Tank Well as ppl say that even rocks or corals can carry pores of ich or velvet, do i need to qt them too? Obviously for coral pests too. But im more concerned about fish pest. How shud i make qt tank for corals? i cant keep an extra chiller for them. Also what about hard corals? Its like maintaining a complete different system for them wich takes a lot of space which i don have. jus a light and a wavemaker would do? # treating while acclimating. Well iv heard from some people that qt can cause more harm to fish as there is almost 0 biological filteration. Rather can i treat fish with cupramine or paraguard while acclimating? After acclimation i can gine it a fresh tank water bath for 2 mints so there is almost no meds going into dt nor any parasite. Has any1 ever tried it? As with corals, will lugols iodine help prevent parasites coming into dt?