The challenges and the rewards are in submersed growth! - Cryptocorynes - Aquatic Plant Central

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Cryptocorynes Cryptocoryne plant species consists of 50+ plant species, and make a unique addition to a planted tank.

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Old 01-22-2004, 04:28 PM   #1 (permalink)
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Default The challenges and the rewards are in submersed growth!

Emersed growth is easy, but so many crypts look just plain green and no more interesting than a weed in your lawn. Submersed growth is where the beauty comes out--- the subtle browns, reds, purples and oranges. Of course, submersed growth is where you can also have meltdowns and even lose a species entirely! Unfortunately, I apparently can't post pictures here, or I could show some of the beauty of submersed growth. Go to Jan Bastmeijer's site and look for the submersed picture of C. beckettii. That is what I am talking about.
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Old 01-23-2004, 06:50 AM   #2 (permalink)
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Many people agree with you. In an underwater environment, Crypts take on beautiful hues and leaf shapes. However, it is sometimes more difficult to maintain them than in an emersed culture.

Paul Krombholz and others are trying their hand at maintaining many species submersed. I'll try and get Paul to share with us his methods.

I think, however, that Paul has really nailed down how to grow crypts emersed. He grows them on his kitchen counter in soda bottles! And you thought crypts were hard to grow???
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Old 01-23-2004, 10:38 PM   #3 (permalink)
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Default Crypts in soda pop bottles

It is a good way to keep crypts and any other aquarium plants for long periods of time with very little care. I cut the top portion off of a two liter bottle, put soil, the plant, and about 1/4 inch of water in the bottom, and then tape the top back on with transparent packaging tape that is about 2 inches wide. It is best to fit the top portion a few millimeters inside the bottom portion so that condensation water stays inside and does not run down the outside of the bottle and wet the tape. Every week or two or three I put in a flake or two of oatmeal to provide CO2. The soil provides enough nutrients for several months of growth, and then small amounts can be added if needed. A good way to add N and P is to put in a small flake of dried liver. A little of that goes a long way.

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Old 01-24-2004, 09:59 PM   #4 (permalink)
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I am going to have to try that soda bottle method! What do you recomend for going from emersed to submersed as far as crypts are concerned? I dont want a "meltdown"!
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Old 01-26-2004, 08:22 PM   #5 (permalink)
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Quote:
What do you recomend for going from emersed to submersed as far as crypts are concerned? I dont want a "meltdown"!
I have never had a problem. I just submerge the plant. The leaves grown in the air seem to last quite a long time, and the new leaves start growing right away. The difference in leaf shape and color can be quite dramatic. I remember gettting some kind of potted, mislabeled crypt grown emersed that turned out to be the so-called red wendtii. The emersed leaves were green with a slightly pinkish midrib, and the petioles were pink. The blades were narrow elliptic and flat. The submersed leaves were much longer with short petioles, highly bullate, and dark chololate brown with dark red undersides. Like all wendtii, the blades tended to be widest at the base and tapered gradually to the tips. I guess that leaf type would be called lanceolate.
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Old 02-10-2004, 06:33 AM   #6 (permalink)
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Hi,

For the soda bottle method, should the cap of the bottle be screwed on or should it be discarded to allow air-circulation? Thanks.
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Old 02-10-2004, 07:14 AM   #7 (permalink)
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Default Soda pop bottle method

I leave the cap screwed on. If it is off, the culture will dry out much more quickly. With the cap on, you may have to replace water once every three years!. With air circulation limited that much, I put in a flake of oatmeal every several weeks to supply CO2.

I also have the upper part of the bottle with the cap fitted inside the lower part. This way, most of condensation water runs down the inside of the bottle rather than the outside. If the condensation water runs down the outside, it, over time, carries away all the stickum of the tape, and the tape turns white and comes loose.
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Old 02-10-2004, 01:04 PM   #8 (permalink)
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Paul,

I think I'm going to keep the 2L soda bottle industry in business by myself because of you. How do you recommend putting the top of the bottle in the base? I had to cut a substantial slit in the side of the top to get it to fit.
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Old 02-10-2004, 01:14 PM   #9 (permalink)
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oatmeal?...CO2? ...eh? I need an explaination please
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Old 02-10-2004, 04:53 PM   #10 (permalink)
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Yeasts in the air will decompose the sugars in the oatmeal, producing CO2. It's the same concept as a DIY reactor, only in the air.
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