Quote:
Originally Posted by Tom Barr
You need to be careful and slowly add more CO2, do so only when you are around and can observe.
Make sure you have good surface movement also.
The plants have no light or nutrient issues, they have access to the water and the sediments.
So all that is left for these two weeds is CO2.
Regards,
Tom Barr
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Not to be disputatious, but I have a huge growth of H. polysperma in a 2 WPG tank (prox) with a soil substrate. There is no carbon augmentation. There is some nitrate dosing. The plant needs substantial trimming every 2 weeks.
Excepting this tank, I have never been able to get that plant to grow as well as well as it seems to grow for others.
It could be a CO2 problem, but in my case I think it has to do with bad karma, which has been mitigated in the case of my latest tank.
Bad karma and/or insufficient CO2 can explain a lot of complex plant problems.
Bill