Pogostemon Helferi and Tank Water

[Crispino Ramos]

I use 100 percent RO/DI water, ADA substrate, and pressurized CO2 24/7 with a pH monitor/controller; I also do EI dosing daily, use a TEK light and keep my pH at 6.2 to 6.5 - I can grow almost all kinds of plants but not downoi. I have tried a dozen times and it melts. What am I doing wrong and what should I change?

 

[fjf888]

I use 100 percent RO/DI water, ADA substrate, and pressurized CO2 24/7 with a pH monitor/controller; I also do EI dosing daily, use a TEK light and keep my pH at 6.2 to 6.5 - I can grow almost all kinds of plants but not downoi. I have tried a dozen times and it melts. What am I doing wrong and what should I change?

Maybe its the 100% RO water. The plants might need more gH.

 

[Tom Barr]

Well, we KNOW it is nothing to do with the Sediment or the ferts:

I do not use much TEK light, only 1.5w/gal at 3 ft away for the light source.

 

[paludarium]

I found that my Pogostemon helferi always grew better on diftwoods or backgrounds. Maybe we have to treat it like the anubias.

Pogostemon helferi on the background, with Diana Walstad's mothods.

Pogostemon helferi on the driftwood, with EI dosing mothods.

Pogostemon helferi on a driftwood with 6 cm in diameter, with Diana Walstad's mothods.

Regards,
Erich

 

[Hallen]

In addition to what Paludarium already said, this video shows that Pogstemon Helferi or Daonoi as the Thai call is growing naturally on rocks and wood, aswell as on the substrate: http://www.youtube.com/watch?v=xZzlM4eWD8Q (clips taken from a Tropica collecting clip)