Re: Can I Adjust Macro Solution? There could be more reasons why the plant has holes. I bet it is not in new leaves but rather in the older ones grown under previous conditions before the aquarium microbiological system stabilized. It is common for plants to drop such leaves and start fresh. Another reason may be low light penetration to the deeper areas and other plant shading. If you decide to increase K dosage then make additional solution with only K2SO4. The original PPS-Pro solution is already at 70% of maximum solubility and will not dissolve more salt. |