I want to ask a favour - would you answer some questions about water for me?
I've read quite a bit now and understand most of it but I have the following situations.
I just purchased a Hanna TDS/ph meter - the readings I am getting are as follows:
I have an RO unit that produces water with a TDS of between 0-20 uS (microsiemens right?)
This is very soft water - I understand that.
I recently bought 4 very young discus very cheaply (couldn't resist them at the price) and when I measured the TDS they came in (bags) it was 2690 uS with the same meter!
Am I reading this right that this is very hard water and not very good for them long term. I thought i would gradually reduce it to under say 300uS but this seems a long way to go.Plan to do this through water changes over some months.
I have two 4ft tanks that read off the scale with the meter - ie over 3999 uS!. Killies seem fine in the tanks. They are mostly odd males and females/pairs. Should I try to gradually reduce these too?
Should I aim for under 300uS for soft water killies? I have discovered how to mix the RO water with bottled mineral water to get a specific reading.
Lastly what is the dh/gh relationship to TDS - if any?
I bought the meter because a Diapteron keeper I have been talking to says that TDS seems more important than ph. I really want to raise Diapterons but am not going to get any more until I fully understand the water quality required.
Sorry this a bit of ramble but I think you are interested and knowledgeable enough to help me.
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