calcium chloride

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  1. D

    RO Water in tank

    Hi all, Finally cycled my tank! Took about 5 weeks but I'm now there. Water in my area is very hard. Details follow: 113 mg/l as calcium 19.755 Clarke 15.82 German I can purchase RO water from my LFS. What ratio tap water to RO water should I use if I want to keep Cardinal Tetra. I also need...
  2. RCA

    Betta Spa

    Can anyone tell me if they have used this product before and what their experience of it is?   I am thinking it might help my old Betta as I am planning to move him to a "retirement" tank.  He spends most of his time now sitting on the...