We use kent calcium to maintian our calcium rate. Got coraline algae all over the place. Getting some sps and will probaley try kent liquid reactor. How can you bash a product you never tried?
FWIW, nearly every aquarist agrees that calcium chloride, such as Kent's Turbo calcium, is an OK way to raise calcium levels. So if that is your experience with Kent products, then that is not at all surprising.
No one in this thread is saying all Kent products are not useful. I think it fair to say that I have read more threads from aquarists about their experiences with different calcium and alkalinity additives than just about anyone. Few folks with more than a year of reefkeeping experience claim that Liquid Reactor has been a great product for them, and many, many folks have found it lacking. That said, my comments on it here and in the article that was linked earlier are largely based on detailed testing of the dissolution of calcium carbonate in seawater, both by myself and in the chemical oceanography literature.
One does not always need to test a product to know whether it can work. I have asked Kent in the past to tell me what was in this product, and based on everything that I have been told, and tests that I have run on similar products, it more than likely does not do what it claims (IMO). I do not believe that calcium carbonate added to reef aquaria will dissolve.
Chris now says that it may be only partly calcium carbonate, and may contain things helping the calcium carbonate to dissolve.
If those ingredients are anything other than carbon dioxide (which I believe Chris told me a long time ago was not added to this product), or organic chelators or other organic compounds (which he has repeated said is not there), then I'd have to back off on my opinion that it largely does not work, and change it to "Whether it works or not, I do not recommend adding it as one does not know what undesirable effects these unknown ingredients might be having on reef aquaria"
I think, however, you may be unlikely to trust in basic science to say whether something will work (not surprising, perhaps, when "secret ingredients" are later invoked), so we can ask folks to chime in whether they have been able to keep rapdily growing SPS corals in a reef aquarium where Kent Liquid Reactor was the ONLY supplement used for an extended period (including not using tap water to top off and not doing a ton of water changes).
Not keep them alive, but keep them rapidly growing (which varies, of course, but I mean the usual rapid growth rates where lots of coral frags become a big colonies in several months).
So who has tried this?
How many were sucessful or not?