Neil
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I thought that I would start a new thread here because this is an interesting topic and was being discussed in a thread that was probably not what the original poster wanted to know.
kribs wrote:
Bissot_J wrote:
farm41 wrote:
In actuality (depending on the age of the RO membrane) the water prduced by a unit is not pure. Close. The second the water comes into contact with any other materials (gravel, plants, rocks, filter and especially food) it decreases its purity even further. I don't know for sure but the elements leeched from these materials are sufficient to sustain any soft water fish. As a matter of fact, I have put apsitos in a new tank with 100% RO so many times that I can't count them all. Just look at the conductivity of pure RO! Many of the biotopes that our fish come from are very acidic, and virtually no harness with minimal conductivity and/or TDS. If you are adding tap water back into RO "pure" water just because you think the fish cannot live without it, you are just placing some of the material that you spent the time and money to get rid of back into it. However, if you are putting some tap back in to buffer the water so that a particular pH can be maintained, that is a different story.
Di is a different story. As far as I know DI is truely pure and will probably have an affect on the fishes ability to regulate the water. But someone with more knowledge than I should address these specifics.
Neil
kribs wrote:
HI
It is pure RO i have not even mixed any peat or anything like that but the gravel in the tank came from an already established tank and the fish were living in it before and i have various different apistos in it and they are all fine. IT doesnt look like a scrape though.
thank you
Bissot_J wrote:
Pure RO ?
i have a question about that .....
is Pure RO is good for life..... ?
i always read/heard/understand that Pure RO doesn't contain (or not enough) vital elements.... so what is the opinion of forum members on that ?
regards
farm41 wrote:
That's what I have heard, you have to mix some tap back in, or reconstitute with a some man made products.
In actuality (depending on the age of the RO membrane) the water prduced by a unit is not pure. Close. The second the water comes into contact with any other materials (gravel, plants, rocks, filter and especially food) it decreases its purity even further. I don't know for sure but the elements leeched from these materials are sufficient to sustain any soft water fish. As a matter of fact, I have put apsitos in a new tank with 100% RO so many times that I can't count them all. Just look at the conductivity of pure RO! Many of the biotopes that our fish come from are very acidic, and virtually no harness with minimal conductivity and/or TDS. If you are adding tap water back into RO "pure" water just because you think the fish cannot live without it, you are just placing some of the material that you spent the time and money to get rid of back into it. However, if you are putting some tap back in to buffer the water so that a particular pH can be maintained, that is a different story.
Di is a different story. As far as I know DI is truely pure and will probably have an affect on the fishes ability to regulate the water. But someone with more knowledge than I should address these specifics.
Neil