cstar
Aquarium Advice Regular
I have a 46 gallon bowfront tank with lake Malawi cichlids. My PH was between 7 and 7.5. I put crushed oyster shells in a mesh bag in the back of my filter. I waited over a week and my PH was the same. I took some tank water and and put 4 tsp. of baking soda in it. I slowly poured some in the tank slowly. After I poured about half the mixture I checked PH again it was between 7.5 and 8, so I stopped adding the baking soda. I tested again the next day it's still between 7.5 and 8. Here comes the questions. My tap water has a PH of 7 , will the oyster shells buffer my PH and keep it up or should I keep using baking soda. It said to use 1 tsp. per 5 gallons. I only used about 2 tsp for 46 gallons and it made it go up. Should it be higher? Fish look happier. Just want some good advice maybe from someone who's had the same problems. Thanks