I have a 20L tank that I’m cycling. Right now my Ammonia is 0ppm, nitrite is .25ppm, and nitrate is 5.0ppm. Now when it comes to the GH I had to add 2 drops but the KH I had to add 11 drops. How do I go about adjusting the GH and KH?
Hmm... in a 20 liter you can keep the shrimp, but fish-wise... even without the problem with the water parameters... at best a handful of rasboras (e.g. chilies). Otherwise you will be changing 10 liters of water two to three times a week.
Erm... Ray? That would mean GH and KH both go up, as you add the levels without real dilution at these levels.you might consider mixing the treated and untreated water to come up with something that will be more suitable both in GH and KH.
Several downsides:Would if help any if I used a couple gallons of distilled water when doing water changes?
Agree.Using remineralized RO water is preferable as you have a stable source water. Since the untreated water will fluctuate with rainfall, etc. and the treated water can fluctuate based on where you are in the resin bed recharge cycle, blending water is not ideal, but I still think it is preferable to using either treated or untreated water alone.