Aquarium quarantine methods

5 comprehensive quarantine method protocols. The single highest-impact husbandry practice for any aquarist.

Copper Quarantine for Saltwater FishCopper at 0.35-0.5 ppm in a separate QT tank kills marine ich + velvet + brook within 21-30 days. To…Tank Transfer Method (TTM)TTM moves fish to a clean tank every 72 hours, 4 transfers total. Disrupts ich + velvet life cycle w…Hyposalinity QuarantineDrop salinity from 1.025 to 1.009 SG over 48 hours and hold for 30 days. Effective for marine ich (C…Freshwater Fish Quarantine ProtocolFreshwater QT is observation-focused, not prophylactic. Hold new fish 14-21 days; treat only if symp…Coral Quarantine ProtocolCoral QT prevents AEFW, red bugs, montipora-eating nudibranchs, vermetid snails from entering displa…