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Thanks Tom.

Aside from algae, according to this study on three aquatic weeds, http://www.plantphysiol.org/content/58/6/761.full.pdf, Hydrilla and Ceratophyllum had CO2 compensation points of 44...

Hi Tom,

correct me if I am wrong.
1 microliter ( μL ) per liter = 1 ppm, reference: http://www.engineeringtoolbox.com/ppm-d_1039.html
right?

So, the CO2 compensation points of 16 freshwater...

Well, based on the observations that too much O2 is negatively correlated with the growth of the aquatic plants, so that siesta, reduced surface agitation or decreased water flow will improve the...

Hi,

I know that some of the aquatic plants experts (in Germany) still believe that oxygenation or too much oxygen in water will reduce the growth of aquatic plants, maybe a study from Cooley et al...

Hi all,

for your references, the following review articles are worth reading:

1. Smith DR, Wang RS. Glutaraldehyde exposure and its occupational impact in the health care enviroment....

Hi all,

I've done an experiment in my non-CO2 tank last year, keeping the temperature constantly at 33 C (91 F) for 18 weeks. I added 30 ml glutaraldehyde into the aquarium every day during the...

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....

Hi Tom,

in the study "Nitrification and denitrification in the rhizosphre of the aquatic macrophyte Lobelia dortmanna", Nils Risgaard-Petersen and Kim Jensen found that O2 was released from the L....

Hi Tom,

both NH4 and NO3 have been bothering me for a long time, not for the algae issue but the plants issue. In her article "Plants and biological filtration", Diana Walstad demonstrated a...

Thanks Tom,

the author also discussed that factors such as presence of NH4, temperature, light and carbon availability will also influence NRA. Well, the presence of NH4 is of my interest. An...

Hi,

I don't know if it was discussed here before. Recently I read an article "Nitrate reductase activity in roots and shoots of aquatic macrophytes". To my surprise, the author found that root...

Hi Tom,

thanks for the reply. In another thread you explained to us with this article http://wetlands.ifas.ufl.edu/publications/PDF-articles/96.pdf, which showed that rapid disappearance of NH4...

I just read an interesting article...

OK, here is the article http://depot.knaw.nl/3383/1/21273.pdf cited by Diana Walstad to show that aquatic plants prefer ammonium. After reading the original research, I was confused with the...

Hi Tom,

sorry for the weird question.:p Some people assume that algae problems are related to many factors, including CO2, O2, debris, temperature etc. Increasing circulation/current may remedy...

Hi Tom,

I just found this interesting thread, and just about to introduce this concept to the Chinese speaking hobbyists. I suddenly remembered that there are also other factors related to the...