Quote:
Originally Posted by aquabillpers
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 |
No reason why the non CO2 approach should have that expression, however,
your plants and tank is adapted to low CO2, this tank is not..................
That makes a huge difference in growth and expression.
As well as advice given.
I can grow most hygros very well in non CO2 systems, with or without sediment nutrients sources.
But this is not a non CO2 system.
Regards,
Tom Barr