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Discussion Starter · #1 ·
Sorry if this has been asked a hundred times bit I couldn't find an answer anywhere. I have recently been testing my water in my newish setup and I don't really understand the results. The tank is 220 Litres with a mix of about 20 fish in there and its been running for a couple of years now.
The results
GH 180
KH 40
PH 6.8
NO2 0
NO3 40/80
AMMONIA 0

Please be kind on your replys as we are not all experts.
 

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Which cichlids are in your tank? If we assume they are Malawi because you have posted in the Malawi forum:

What test kit are you using? Hopefully you can get a smaller range on the nitrates (N03) with a better kit?

N02=0 is good
Ammonia=0 is good
N03=40/80 is not good, you should do partial water changes to get the nitrates (N03) down to 10ppm.

Your KH and pH is low for Malawi.

It's a newish setup but the tank has been running a couple of years now? Did you switch to Malawi? How long have they been in the tank?

Don't change anything until you reply and get additional advice.
 

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Discussion Starter · #3 ·
Thanks for the response
Its been a Malawi tank for a couple of years now, sorry I thought this still to be considered as newish
I've done two partial water changes now and the results have stayed the same, it was about a 20% change
Whats the best way to increase KH and PH?
The test kit is a API Master Test Kit
Thanks again
 

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If it has been that way for a couple of years, don't change anything.

Except...change a larger volume of water to get that nitrate down to 10ppm. You can do 50% every day until you achieve your goal.
 

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The pH is low, but after a few years they are acclimated so changes would stress them with possibly no improvement. By avoiding additives you make water changes easier and keep things stable.

If I were setting up a new Malawi tank for new fish I would bump up the pH and KH a little.
 
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