Welcome Michael, It sounds like everything is off to a great start in your tank. Since you are not seeing any ammonia or nitrite your biological filtration is already up and running for the number of fish that you started with. Well done. You could probably add a couple more fish whenever you are ready. The rise in pH is not related to nutrients. Unless you're feeding your fish baking soda, or mummified jerky or something, it's probably coming from your decorations or gravel. What type of substrate are you using? Any decorations or driftwood? How is the health of your fish looking? Everyone active and eating? Fins and gills moving normally? Did you add any plants, are you planning too? Live plants really help me keep the algae under control in my tanks, especially with the number of fish I like to stuff in there. Cheers, Jesse
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