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Need help adjusting pH, GH, and KH.


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I think the answer is don't do it.  I have very soft water and 7.8 ph.  Moving your ph around is much more stressful than just keeping it stable.  fish can regulate their internal ph just like humans.  Some fish are sensitive but even the allegedly sensitive fish usually do fine up to 8-8.2. 

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3 minutes ago, CalmedByFish said:

Is this the kind of thing where I should just watch the fishes' health and behavior, and "if it ain't broke, don't fix it?" 

That is mostly the approach I take. The most sensitive and reliable indicator there is for water quality is the the behavior and health of the fish. If they are happy and eating and growing and breeding, then your water parameters are good.

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Depending on the fish, I'd rather boost the hardness if needed, with something gradual and stable like crushed coral, than mess with the pH. You can naturally help lower the pH with mopani wood or catalpa leaves, and things should find a nice equilibrium with that. You'll probably always stay at around neutral with those things working in tandem, but a stable pH is better than the "correct" pH.

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2 minutes ago, Kirsten said:

 I'd rather boost the hardness if needed, with something gradual and stable like crushed coral, than mess with the pH. You can naturally help lower the pH with mopani wood or catalpa leaves

So I know ahead of time: Coral would cause the pH to be higher, right? And wood or leaves would make the water a bit tan? 

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34 minutes ago, CalmedByFish said:

So I know ahead of time: Coral would cause the pH to be higher, right? And wood or leaves would make the water a bit tan? 

Yup, basically. Crushed coral will gently raise pH and KH (though it will significantly raise GH, especially if there's a lot of powder on it ). Driftwood and leaves will release tannins, not unlike black tea leaves, that will gently lower your pH and might make your tank water look a little amber. Live plants will also use minerals and will gradually soften the water

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On 3/5/2021 at 9:47 PM, ererer said:

What's your gh and kh, and what were you hoping to get them to? What fish/plants/inverts are you wanting to keep?

 

GH 11. KH 3. pH 7.8. 

Animals: 1 Angelfish, breeding Endlers, Malaysian Trumpet Snails. Nothing is wild caught.

An African Dwarf Frog has her own tank.

Plants: Vallisneria 

My thinking is that breeding fish and snail shells both need hard water, and that all the species need the pH around 7.0-7.5. 

I've found more people saying angels and endlers are good at a high pH. I know snails are. Is the ADF? 

I'm still not confident that the GH/KH is high enough for breeding, and for snail shells. 

(I'm not new to having fish, but certainly new to having knowledge about it.) 

 

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