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PH questions

Badmans Tropical Fish Message Center: General message area: PH questions
  

kendall

Friday, April 26, 2002 - 11:52 am
My community tank (neons, peppered corys and dwarf gouramis) has a ph of 7.6, and I'd like to lower it for the fish. The rainwater I usually use to change the water is usually at 6.5 and this works but recently its gone down to 6.0. Will it harm my fish if I put it in there?

  

patm

Friday, April 26, 2002 - 03:39 pm
Hmm, rainwater? I've never heard of using rainwater for a water change. Have you ever tested it, because I would think it would have alot of pollutants and things in it. And I don't think it would be good for the fish to lower the ph by adding water with a ph so much lower, it has to be gradual. I've seen chemicals that lower ph, but I really don't like adding unneccesary chemicals to the tank. You want to lower it gradually, but I've never really had to do this, so hopefully someone else can help.

  

jeff s

Friday, April 26, 2002 - 07:35 pm
singin in the rain..oh singin...okay so if rainwater is from an unpolluted source resulting in acid rain it should have a ph level of 5.5 to about 6..so your is about right...what happens is the rain absorbes C02 from the air and dissolves with the H20 starting a reaction that produces carbonic acid just like adding C02 to your tank dropping that ph...if you let it sit around for a bit it will probably go up...also depending on the time of year that could all change too..now as far as adding it to your tank...just add it slow and things should be fine..

  

kendall

Monday, April 29, 2002 - 11:20 am
I've always used rainwater, never had any problems...I added it and it was fine. I was just a little worried bc its usually 6.5 and today it was 6.0! Oh well, everything turned out well.

 

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