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Tropica's Cryptocoryne usteriana

alto

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24 Dec 2014
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Cryptocoryne usteriana

looking for any experiences with the Tropica cultivar

@ Mick.Dk
do you have any full tank photos from that sample tank?
Also interested in other species visible in the photo & tank conditions 0f course ;)
 
One Photo of my friend tank The Crypt U has been growing for about 6 months the tank is low tech. It was about 5--6 cm when planted

PB034192_zpsblx7zbix.jpg
 
Tropica C. usteriana is probaply the "Morco" variant. This is the most red of the 3-4 accepted "types" of C. usteriana.
It is really not very demanding, but not as easy as our beloved Wendtii-types.
One big difference is the time C. usteriana often need to establish itself, before getting around to do some growing - it can take months........
After that it can allmost be invasive, sending quite long runners under the gravel and having very virile offspring popping up.
The size will depend somewhat of conditions in the tank - but it is very capable of growing leaves well over 50 cm.
Biggest leaves on the plant from Pic.of Alto's post were about a meter - the green plant under it is Echinodorus fluitans, for comparison !!!
 
Tropica C. usteriana is probaply the "Morco" variant. This is the most red of the 3-4 accepted "types" of C. usteriana.
It is really not very demanding, but not as easy as our beloved Wendtii-types.
One big difference is the time C. usteriana often need to establish itself, before getting around to do some growing - it can take months........
After that it can allmost be invasive, sending quite long runners under the gravel and having very virile offspring popping up.
The size will depend somewhat of conditions in the tank - but it is very capable of growing leaves well over 50 cm.
Biggest leaves on the plant from Pic.of Alto's post were about a meter - the green plant under it is Echinodorus fluitans, for comparison !!!


Hi Mick, Great info :thumbup: Looks like I will be getting some baby plants back soon then :D
 
- oh, allmost forgot:
the pictured test-tank was run with substrate, covered by inert gravel. Light was T5 "cool dayligjt" of medium category intensity and pressurised CO2 was used as for medium category. Waterchanges app. 30 % every week.
- this tank was an 750 l. heavy on different Echinodorus species/types and other "root-feeders" and heavy on fast-growing plants in general.............and actually "ate" anything between 600 - 800 ml. of Tropica specialised - every week ........:eek:
 
sketch-1479938331831.png
Hi, this looks just like my C.Affinis:-S. tried to upload a photo but the underside doesn't show.
Has there been any changes in species name over the years? it could be the same plant but someone decided to give it a more exotic name :D


Cheers
John
 
Nope - the C. affinis is another species. It is smaller and usually have more slender leaf-stem. Unfortunately there are quite many different Crypts. going around the hobby under the name C. affinis.
True C. affinis does not grow very well, cultivated emerse and commercially - which is why it is not very common in shops.
To the best of my knowledge Niels Jacobsen (Crypt. specialist) have several different plants, by that name, in his collection.

C. usteriana and C. aponogetifolia have been "confused" and given same name in the past.
 
I got my c.species 40 years ago and was told it was c. haerteliana?, can't remember the spelling, but name was supposed to have changed to affinis some years later. these grow 25-30cm. it could easily have been wrongly named on the original import, there wasn't much information available then.
I did once grow one emersed which flowered and had a short pink spathe but can't find the photo I took at the time:( my old plant book shows a long white flower for affinis so I have possibly been giving the wrong name for 40 years,:-S oops.
Cheers
John

I do get different forms depending on conditions, sometimes longer thin flat leaves and, usually, bullate as in the photo.
 
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