I don't sell them, I am merely a consumer.
I was not aware there was ever any debate as to wether or not RO
was effective. If set up properly and maintained, it is extremely effective at removing most, if not all, contents from the water.
If you are using RO
, ideal TDS
is 0ppm. You want to start from a clean slate, and add to the water only what you want.
The main targets of RO
are to remove ammonia (toxic at low levels to inhabitants), Nitrate (toxic at higher levels, used by algae as a "fuel source" per say), phosphates (also used by algae), silicates (used by diatoms, a form of algae), as well as chlorines/chloramines, waterborne bacteria, and heavy metal deposits. There are countless possible toxins and RO
will remove the vast majority of them. 0ppm isn't absolutely vital to the health of an aquarium, but it helps extremely - especially in areas with less than suitable water.
It is also necessary for some of the more sensitive species in regards to pH and alkalinity. If you start with RODI
water, you can add buffers and ingredients of your choosing to concoct the perfect water parameters for the species you are housing.
Also I currently do not have a fish tank, but thanks for asking