strange water test results??

mrsshoup

AC Members
Sep 23, 2008
14
0
0
Ohio
I have well water.
KH is 14
GH is 3
pH is 8.0-8.2

I don't know if it matters or not... ammonia is 0, nitrites 0, nitrates 10.

Is a GH that low "normal" with the kigh pH and KH?

I'm cycling a 75 gallon tank. Am I right in thinking that I'd better stick with livebearers? I'm not interested in the larger cichlids. I'd like to try the dwarf cichlids... but I don't think it would work with the water I have.... not willing to invest in R/O yet either.

Any stocking suggestions?
I'd also like to try live plants.. any suggestions there? Should I use flourite for the substrate or can I use just regular gravel?

Thanks,
Marty
 
The GH relates to how much magnesium and calcium compounds are in the water while KH relates to how well the water will buffer pH with carbonates. You know from your own readings that the KH is high as that is what holds your pH so high. It seems that your carbonates are not in the form of calcium or magnesium salts so the GH is low. Yes, those readings make sense. It is the reason we test them separately. As JM1212 has already said, most fish that you find locally will adapt just fine to live in your water. Unless you want to try breeding some of the harder south american fish that demand soft / low pH water, you will also be able to breed many different fish. By comparison, my water has a GH and a KH both around 12 and a pH of about 7.8. I have yet to find a fish that would not thrive in my tanks and the only accomodation I have made for breeding was to try some south american corydoras that come from an inland black water type environment. I compromised and mixed their water 2 parts RO and 1 part tap to get the hardness down for them.
 
your water looks fine.. Usually the gH and kH are similar levels, and since your kH is higher, may I guess that your tap is going through an ion exchange water softener (the kind you need to add water softener salt to). That would explain the low gH. Like I said before, your water should be fine :)
 
Thing is, if the water has gone through a softener, the low GH is masking a much higher level of TDS (total dissolved solids) in the form of sodium and/or potassium. If so, act as though the GH were much higher.
 
Please don't take this common advice of keeping captive bred fish under that notion that they will adapt to the water. It's cruel to force a creature to stress itself into such a condition. The idea of livebearers is a very good one and I'm happy to see someone taking the action of picking their fish according to their water parameters.

You could try African cichlids if you don't want livebearers. They would love the conditions of your water.

Again, I just want to make sure everyone knows I'm not flaming and I hate being the guy who has to disagree with everyone, but I have strong feelings about adapting conditions to fish rather than the reverse.
 
Hmm, well regardless of that, many fish seem to live long and 'happy' with hard water and 8.5 ph... Happiness is always a bit of a funny one with fish anyway, but if they eat and grow and breed and live to a good age (as they do here) then they are doing fine no doubt.
 
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