Hey just wanted to ask if you have had any issues with any plants with your High PH?, more specifically in your non CO2 tanks.
I have a couple that should grow fast, well faster than Java Ferns, lol, bot dont seem to. L. Repens is the main one that I'm struggling with.
I don't have a lot of plants growing in that tank so I'm not a lot of help there. You can see it in my 29g journal link below. I have Crypts, Java Fern, some barely alive wisteria and a sword that's growing slowly (which is fine with me).
I don't plan to add more plants until I switch the tank out from my 20L to my 29g tank and move it all to my house. But at that time, I also plan to double the light.
The tank has 1.8wpg of lighting now which is considered low-medium (I've heard 1.8 being the dividing line between "low" and "med" light).
If I didn't decide to increase the lighting, I think I'd go through the "low light plants" thread to carefully select the plants that would work well.
Just keep in mind that there are 3 factors which determine the rate of growth for plants (other than their natural habit, such as java fern). The plant will only grow as fast as the most constrained factor between the 3. The 3 factors are: (1) light, (2) ferts, and (3) CO2 (injected or Excel). Plants grow until they run out of the first of any of the 3. So when you limit the light, the plants cannot grow at their full potential speed, even with lots of ferts and CO2, because the light limits them.
If you want fast growth, you have to get higher light. But fast plant growth also means fast everything, including algae.