Kh vs Gh

[Mugwump]

...which is most critical?.....Gh ?

[Ron Sower]

...which is most critical?.....Gh ?

...for fish or plants?

[Mugwump]

...which is most critical?.....Gh ?

...for fish or plants?

...fish.......Kh for plants then?

[Ron Sower]

...which is most critical?.....Gh ?

...for fish or plants?

...fish.......Kh for plants then?

https://fishlab.com/aquarium-kh/#best-kh-level-in-aquarium...
...I don't believe there is an "optimal" GH or KH. It's going to vary for different plants, as well as fish... I just try to keep mine stable...

[Mugwump]

...which is most critical?.....Gh ?

...for fish or plants?

...fish.......Kh for plants then?

https://fishlab.com/aquarium-kh/#best-kh-level-in-aquarium...
...I don't believe there is an "optimal" GH or KH. It's going to vary for different plants, as well as fish... I just try to keep mine stable...

..me too....we have good water here..neutral PH out of the tap....tds's near 200 tho...considering getting a decent RO system....got rid of the rental unit a while back..RO units are much cheaper now than years past.....

[Ron Sower]

...which is most critical?.....Gh ?

...for fish or plants?

...fish.......Kh for plants then?

https://fishlab.com/aquarium-kh/#best-kh-level-in-aquarium...
...I don't believe there is an "optimal" GH or KH. It's going to vary for different plants, as well as fish... I just try to keep mine stable...

..me too....we have good water here..neutral PH out of the tap....tds's near 200 tho...considering getting a decent RO system....got rid of the rental unit a while back..RO units are much cheaper now than years past.....

...are you going to the green side?...

[Mugwump]

...which is most critical?.....Gh ?

...for fish or plants?

...fish.......Kh for plants then?

https://fishlab.com/aquarium-kh/#best-kh-level-in-aquarium...
...I don't believe there is an "optimal" GH or KH. It's going to vary for different plants, as well as fish... I just try to keep mine stable...

..me too....we have good water here..neutral PH out of the tap....tds's near 200 tho...considering getting a decent RO system....got rid of the rental unit a while back..RO units are much cheaper now than years past.....

...are you going to the green side?...

We already have plants in about every tank, but thought about a nice 'show' type tank to house some retired stock....

[Ron Sower]

...which is most critical?.....Gh ?

...for fish or plants?

...fish.......Kh for plants then?

https://fishlab.com/aquarium-kh/#best-kh-level-in-aquarium...
...I don't believe there is an "optimal" GH or KH. It's going to vary for different plants, as well as fish... I just try to keep mine stable...

..me too....we have good water here..neutral PH out of the tap....tds's near 200 tho...considering getting a decent RO system....got rid of the rental unit a while back..RO units are much cheaper now than years past.....

...are you going to the green side?...

We already have plants in about every tank, but thought about a nice 'show' type tank to house some retired stock....

...aha! ...you will be hooked!...

[Ron Sower]

...which is most critical?.....Gh ?

...for fish or plants?

...fish.......Kh for plants then?

https://fishlab.com/aquarium-kh/#best-kh-level-in-aquarium...
...I don't believe there is an "optimal" GH or KH. It's going to vary for different plants, as well as fish... I just try to keep mine stable...

..me too....we have good water here..neutral PH out of the tap....tds's near 200 tho...considering getting a decent RO system....got rid of the rental unit a while back..RO units are much cheaper now than years past.....

...are you going to the green side?...

We already have plants in about every tank, but thought about a nice 'show' type tank to house some retired stock....

...aha! ...you will be hooked!...

[LizStreithorst]

A low kH is necessary if I want the eggs to hatch, but I'm into soft water fish.  It all depends on the species of fish you want to raise.  There is a trick that let's eggs hatch with the expense waste of RO.  It works in my water, don't know if It would in yours.  I don't think that gH matters much, at least with Discus.  I believe that fish get minerals from their food, not the water.  At least that has been my experience.

I don't have a clue about plants.  I only know that the easy ones do fine in my tap water.  My parameters after aging are pH 7.2 gH 6 and Kh 4.5.

[Mugwump]

...you folks rock !.......