Kosta Posted November 16, 2015 Report Share Posted November 16, 2015 is it rue that wather from rain what we drink on Northland is not good for most comen fishes like gapy ,moly gurami ancistrus coridoras? thanks Quote Link to comment Share on other sites More sharing options...
Adrienne Posted November 16, 2015 Report Share Posted November 16, 2015 Water? A number of people use rain water for water changes so the answer is that generally it is fine. It depends where the run off is coming from and what you store it in as to how good it ends up. Fish with special requirements as in need high or low pH may not handle it. You would need to match it to the species requirements. Quote Link to comment Share on other sites More sharing options...
alanmin4304 Posted November 17, 2015 Report Share Posted November 17, 2015 Agree with above. For some species it is good and others no good. It is generally soft and slightly acid. Quote Link to comment Share on other sites More sharing options...
Ira Posted November 17, 2015 Report Share Posted November 17, 2015 But for most fish it's perfectly fine. For the common fish you listed, it's good. Quote Link to comment Share on other sites More sharing options...
Kosta Posted November 18, 2015 Author Report Share Posted November 18, 2015 Yeap i anderstand :-) i forgot to say that I have in the house copper piping.Is that problem? Quote Link to comment Share on other sites More sharing options...
Adrienne Posted November 18, 2015 Report Share Posted November 18, 2015 Yes. It is not good for the fish. Quote Link to comment Share on other sites More sharing options...
Kosta Posted November 18, 2015 Author Report Share Posted November 18, 2015 Ufff what I'm going to do...can I take water straight from rain tank, before come to the house before filtration? Practicaly that will be water straight from sky..is it good idea? Quote Link to comment Share on other sites More sharing options...
alanmin4304 Posted November 18, 2015 Report Share Posted November 18, 2015 Copper is only a problem if the water is acid. It is usually acid in built up areas because of sulphur dioxide from smoke. Quote Link to comment Share on other sites More sharing options...
Ira Posted November 18, 2015 Report Share Posted November 18, 2015 The miniscule traces of copper you'll get from copper piping will be harmless unless you have a marine tank or are trying to keep snails or other invertebrates. Fish are not sensitive enough to it to worry. Quote Link to comment Share on other sites More sharing options...
Kosta Posted November 19, 2015 Author Report Share Posted November 19, 2015 Hmmmm, Hehe now I have different answers.. Now it's more tricky do anderstand what is right. What about water straight from sky? Collect. Water from rain, no filtration and put straight in aquarium Quote Link to comment Share on other sites More sharing options...
Shilo Posted November 19, 2015 Report Share Posted November 19, 2015 Is your cold water piping copper or just hot water? Most houses only have the hot water system on copper because its more expensive then pvc alternatives.If your cold water is copper I still wouldn't worry about it unless you want to keep invertebrates like Ira said. Some fish medication (Malachite Green) consist solely of copper and are used in much higher doses then you would get from water running through the pipes. If you are worried then just run the tap for a while to flush out any sitting water in the pipes before using in the tank. The longer the water sits in contact with the copper the more will be dissolved so by running the tap you will be bringing in fresh uncontaminated water.If you are using rain water it won't need filtration before putting in the aquarium, it will be a lot more pure then most city water supplies and you won't need to deal with chlorine. Caryl 1 Quote Link to comment Share on other sites More sharing options...
Kosta Posted November 20, 2015 Author Report Share Posted November 20, 2015 Ooooo.. I like that answer Quote Link to comment Share on other sites More sharing options...
boban_nz Posted November 20, 2015 Report Share Posted November 20, 2015 Copper is an essential trace element and any commercial fish food contain a trace amount of copper. Concentracion is so low that it's not worth worrying about.Rainwater has low alkalinity and pH will be unstable and difficult to maintain. Most fish will not tolerate rapid changes in pH. You should worry about that Rainwater has no minerals in it. To maintenance of the acid base balance fish must have Na+ K+ Cl- otherwise, fish will die so you need to add some salt mix (minerals in fish food ingredients???).Malachite green has no copper, it is not same as mineral malachite. Quote Link to comment Share on other sites More sharing options...
Shilo Posted November 20, 2015 Report Share Posted November 20, 2015 Malachite green has no copper, it is not same as mineral malachite.Sorry Boban but Malachite is a mineral of copper (copper being the element), it is one of the main indicators of a copper source when prospecting and one of the main minerals that is mined to extract the copper from (like all metals, natural pure copper is rare). It is also why corroded copper pipes etc turn green - Malachite is forming from the oxidation.Rainwater could be simply buffed with crushed shell if needed to stablise PH. Quote Link to comment Share on other sites More sharing options...
boban_nz Posted November 20, 2015 Report Share Posted November 20, 2015 .... Some fish medication (Malachite Green) consist solely of copper and are used in much higher doses then you would get from water... Fish medication malachite green is dye, organic compound not the mineral malachite :) Quote Link to comment Share on other sites More sharing options...
Shilo Posted November 20, 2015 Report Share Posted November 20, 2015 Yup, got me there Quote Link to comment Share on other sites More sharing options...
Ira Posted November 20, 2015 Report Share Posted November 20, 2015 Fish medication malachite green is dye, organic compound not the mineral malachite Appears it's C23H25ClN2Lots of carbon, lots of hydrogen, a little iodine and nitrogen. Quote Link to comment Share on other sites More sharing options...
alanmin4304 Posted November 20, 2015 Report Share Posted November 20, 2015 Malachite green is named after the copper ore malachite because they are the same colour. Quote Link to comment Share on other sites More sharing options...
boban_nz Posted November 21, 2015 Report Share Posted November 21, 2015 Appears it's C23H25ClN2Lots of carbon, lots of hydrogen, a little iodine and nitrogen. ...a little chloride ...Malachite Green as a common name covers more than fifteen different chemical compounds. Many of them are not used as a fish medication at all. Malachite green oxalate (C52H54N4O12) CAS Number：2437-29-8 is used as an antiparasitic substance but you can use Malachite Green hydrochloride as well. Quote Link to comment Share on other sites More sharing options...
Ira Posted November 21, 2015 Report Share Posted November 21, 2015 ...a little chloride ...Malachite Green as a common name covers more than fifteen different chemical compounds. Many of them are not used as a fish medication at all. Malachite green oxalate (C52H54N4O12) CAS Number：2437-29-8 is used as an antiparasitic substance but you can use Malachite Green hydrochloride as well. AH, you're right, stupid ambiguous letters, I thought it was CIN2 not ClN2 Quote Link to comment Share on other sites More sharing options...
Kosta Posted November 22, 2015 Author Report Share Posted November 22, 2015 Hmmmm... :-) i am beginner :-) now I'm confused again. If rain water is without minerals what I suppose to do can I put minerals.? Here everybody drink rain water..so we don't import minerals in our organisam with water. We are in deficit with minerals becose of rain water? Quote Link to comment Share on other sites More sharing options...
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