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Don't worry. Plants are very forgiving.

What you're trying to do is maintain a high humidity until such time as the plant adapts to a lower humidity environment. This will happen slowly. Start by opening a corner of your plastic film. Then over a couple of weeks, open it a little more.

Let the plants be your guide.
 

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Just a few clarifications with regards to some of the things mentioned in this thread.

I am in my 5th week of growing my HC emersed.

When you say Fertilize liberally, how often and at what amount? Say on a 16x10x10 Inch Tank?
(Note: I have the components for PPS-Pro at hand.)

How do you guys administer the Fertz?

I use the plants as a guide, but I am not very sure if I am still under dosing on the Fertz. I am wondering if I can push the growth even faster. I wanna know how you guys do your thing.

Here are my Tank Parameters:
16x10x10 Inches
2 x 23watt CFL's
Black Volcano Sand
Fertilizer is PPS-Pro 5ml Macro and 2.5ml CSM+B weekly injecrted in the Substrate.

TIA :)
 

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P3md,

When I say "fertilize liberally" I mean don't try to maintain certain ppms of this or that fertilizer. Basically you want to make water that is rich in fertilizers. If you are into PPS you should be able to figure out how much of what will make this "rich" water.

Don't worry too much about the fertilizers. What will really make the emersed HC grow is A LOT of light. I grow mine under 120 watts of light that is only 2 inches above the plant. Make your conclusions from there :)

Also if you don't use Aquasoil don't expect the greatest growth in the Universe. The HC will grow but not near as explosive as with Aquasoil. No Aquasoil = be patient :). The roots like acidic pH and that is what Aquasoil provides very well. You may try to adjust the substrate pH with acid but the headaches are too much I think.

--Nikolay
 

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Oh Ok. Thanks.

I previously had 92 watts on this emersed HC tank but I half the lighting since my "old" HC leaves were yellowing. Come to think of it, it was also the time when I was dosing Fertz at only every 2 weeks. Go figure :)

I will put back the other 2 cfls and increase fertz... we'll see.

Thanks again.

BTW, here is a picture (I hope the TS won't mind):

Week 4
 

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Massymo,

VERY nice HC!

What I conclude from all this is that HC loves to grow emersed. It never develops such big hunter green leaves under water.

It loves to have its roots in slightly acidic substrate (or very acidic substrate, AquaSoil in my case gave about pH=5.5, water filtered through peat gives an immediate drop of at least 1.0).

It likes good ventilation (I grew it without any humidity dome, basically a house plant).

From your pictures it looks like sunlight is very good for growing HC. In my setup I had only Fluorescent lights - 120 watts, no sunlight. The bulbs were very close to the HC - about 2 inches above the plant. Moving the light up even 1 inch really slowed down the growth.

And lastly HC absolutely loves to pig out on food. Maintaining 1 ppm N or 0.5 ppm P does not work very well. 20 and 2 is more like it.

So, for anyone that wants to grow HC emersed - read and learn. It's ridiculously easy. And will probably put you on the path of growing other plants emersed. My only suggestion is rig up a hydroponic system. That's extremely cheap and easy to do too - for about $10 you can have a growing area measuring 4' x 1'. Never worry about fungus or BBA again.

--Nikolay
 

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hi,
-i cultived HC pure clay also...it grow very well...
-the strong sunlight produce small and compact leaf...low sunlight produce large leaf, I have tested it and low light is the best for this plants....
-the food is hydoponic system whit max 800 microsiemens...complete solution, microelements...etc..
-the fungus without ventilation grow fast!!!!! it's very dangerous if the plants live in little level water...hydroponic system recommended -ebb and flow-

:)
 

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wow, that was a massive HC carpet. looks awesome.

so how long is the transition point from emersed to submersed? if i put something that grew like this outside will it be okay in my aquarium or is it just going to melt completely and am i going to have to start from scratch?
 
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