I've been using Novaqua about 10 years. Most, if not all, conditiners break up chloramine now. Many bind heavy metals also, which affects us through copper pipes, water impurities and even iron in well water. I have tried Seachem Prime, but don't like the smell it imparts to my refill reservoir. Now is the time I get a large bottle "Novaqua for ponds" on clearance.treats like 2,600 gallons.

Not to highjack (?) but I despise Microbe-Lift: Stinky & made red slime in the sumps.