Cichlid Fish Forum banner
1 - 20 of 20 Posts

·
Registered
Joined
·
340 Posts
Discussion Starter · #1 ·
I've never really payed attention to water chemistry apart from PH, ammonia, nitrite and nitrate levels.
Recently purchased API's GH and KH test kit to check water hardness. The only thing I add to the water is cichlid lake salt

Tap water
PH 7.4
KH - 4
GH - 7

Tank water
PH 7.4
KH - 4
GH - 11

1. Are these levels OK?
2. Should I add anything else?
3. Should I stop with the salt?
 

·
Registered
Joined
·
678 Posts
There are various dynamics that affect pH but it looks like yours is stable, which is the bottom line. I wouldn't mess with anything.
 

·
Registered
Joined
·
678 Posts
shiftyfox said:
3. Should I stop with the salt?
If you stop with the Cichlid Lake Salt then looks like your GH would go back to 7, which is also fine for most africans. But I'd make the change gradually over a few weeks' water changes.
 

·
Registered
Joined
·
678 Posts
Fogelhund said:
ken31cay said:
DJRansome said:
I would not stop with the salt. 7 might work but 7.4 would work better.
Cichlid Lake Salt doesn't affect the water's pH.
That really depends on the recipe in question, as many/most do.
If OP is using Seachem Cichlid Lake Salt (my assumption), then it won't affect pH.
 

·
Administrator
Joined
·
41,532 Posts
Fogelhund said:
Maybe they should just use the buffer recipe on this website then.
Plus one. Also agree that lots of things are labeled cichlid salt and could have sodium bicarbonate as well as other ingredients.
 

·
Administrator
Joined
·
41,532 Posts
GH of 7 is sufficient. You already have minerals in your water. This is why you test before you add chemicals.

The KH of 4 could be a problem, but if you are saying your pH of 7.4 is 100% stable then see what happens.
 

·
Registered
Joined
·
340 Posts
Discussion Starter · #17 ·
So what are the likely effects to the fish with low values of both Kh and Ph
In my case a Ph of 7.4 and Kh of 4..?

Does this mean I could have low oxygen levels and higher carbon dioxide levels in the tank..?
 

·
Registered
Joined
·
678 Posts
shiftyfox said:
So what are the likely effects to the fish with low values of both Kh and Ph
In my case a Ph of 7.4 and Kh of 4..?

Does this mean I could have low oxygen levels and higher carbon dioxide levels in the tank..?
I don't think either of these will be affected much by your tank's pH and KH levels. To ensure high level of dissolved oxygen make sure there is sufficient water surface agitation and water temperature within the fishes' proper range (not too high). For low carbon dioxide keep the tank as clean/clear of fish waste/uneaten food as you can, also maintain the weekly water changes.
 

·
Registered
Joined
·
678 Posts
shiftyfox said:
I'm not trying to increase the Ph, I'm quite happy with a stable 7.4

I just thought adding the salt would introduce some minerals to the tank water
If your pH remains at 7.4 three days after each water change then it's stable. Since my public water source is r/o water, I use Seachem Cichlid Lake Salt to re-add trace minerals (and increase GH), but most water supplies have all the mineral compounds you need. If you find you do need to add more minerals, then Kent RO Right will also do this and will not increase GH quite as much as Seachem Cichlid Lake Salt does.
 

·
Registered
Joined
·
340 Posts
Discussion Starter · #20 ·
Thanks Ken.

Yeah I have a wave maker for surface agitation and use a small air stone too so hopefully there's enough oxygen in the water.
And water changes are done approx every 5 days.
I may stop using the cichlid salt then and Gh will drop back to 7 from 11.
 
1 - 20 of 20 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top