Reverse osmosis

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Gd question, the amount of water conditioner I use is crazy, I'm gonna subscribe just in case someone answers lol.
 
I just asked it in another forum and they actually answered me back and they recommend you need conditioner still.
 
I've used an RO filter and didn't use a water conditioner. It may depend on the filter. Mine was suppose to also remove chloride and chloramine.
 
Now I think about I'm sure I read somewhere you have to add some nutrients or something like that back into the water if its for freshwater tanks, that's not 100% certain tho
 
I have discus fish... I was mixing it 3:1 3 being ro water 1/ treated tap.
 
I use RO water, and it's 99.99999999% pure. The conditionner removes chlorine and heavy metals (just the glamrock ones), so it's 100% unnecessary in my opinion. Conditionners like Aqua-Plus though cover fish with a protective membrane, which can be of interrest, but not worth it IMO.

The water is so pure that you have to add trace elements. If you use a buffer for an African Biotype or south american biotype, usually, you have those elements with it. If you have a biotype with a PH of 7.0, no buffer exists for you. trace elements can be availaible online but they never have some at my LFS, and looked at me like I was an alien when I asked for it. You can make a mix 90% RO Water and 10% conditionned tap water, and bingo! You have your trace elements. Some people think this method is useless though and say you polute your RO water, but I think that there's no panic!
 
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