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Discussion Starter · #1 · (Edited)
As always, comments please. I'm trying hard not to veer off too far into nerd speak with this one.
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Hygrophila sp. 'Bold' is a strikingly colored Hygrophila that appeared in the United States hobby in 2006. The species to which it belongs and its natural origin are at present uncertain, but it may be from Thailand. Many plants show variation based upon growing conditions, but 'Bold' is among the most variable of them all, with a plasticity that is just short of astonishing.

It is frequently confused with another recent introduction, Hygrophila sp. 'Tiger'. Both may show a reticulated leaf pattern, but submersed 'Bold' grows mildly crenate leaves that are somewhat narrower and not as rounded at the tip as in 'Tiger'. Under intense lighting and intense micro nutrient dosing, Hygrophila sp. 'Bold' may become a strong maroon to purplish color with relatively short internodes; a similar result may be achieved in mineralized soil tanks. In more typical conditions, leaves are browner and more noticeably reticulated, along with longer internodes. Even without co2 or high light, 'Bold' grows quite well and may be considered an alternative to H. polysperma, both because of its adaptability and growth habit.

Emersed growth poses no difficulties and again showcases its variability. Young emersed specimens often have numerous and obviously glandular hairs and are often maroon; older plants have considerably less pubescence and are usually green. Unlike many Hygrophilas, the inflorescence of this species is an attractive terminal spike, consisting mostly of densely packed bracts and flowers at the top of the stem. Hygrophila sp. 'Bold' can grow to eight inches leaf tip to leaf tip when out of water, so plan accordingly if emersed storage is desired.

Not sold commercially, Hygrophila sp. 'Bold' is commonly traded amongst hobbyists. Due to the confusion with 'Tiger', it is recommended that one verify the identity of plants to be bought.
 

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time for a glossary for the site :)
 

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Sounds like a good description. I was going to recommend mentioning the longer nodes, but you covered that. ;)

I agree a glossary would be helpful to many folks.

-Dave
 

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Cavan,

I have this plant in two different aquariums at the moment. The plants in the lower-light 46g aquarium are deep burgundy in color and the plant is assuming a creeping horizontal growth pattern. The intensity of the coloration is remarkable.

I trimmed some and started it in my 180g "high-tech" tank. Interestingly it's demonstrating a vertical growth pattern with much larger leaves and unfortunately far less color intensity. It's a drab brown.

I can get some photos if you'd like. It's situated in both tanks such that I should be able to isolate it fairly well for some clear shots.
 

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Discussion Starter · #8 ·
Cavan,

I have this plant in two different aquariums at the moment. The plants in the lower-light 46g aquarium are deep burgundy in color and the plant is assuming a creeping horizontal growth pattern. The intensity of the coloration is remarkable.

I trimmed some and started it in my 180g "high-tech" tank. Interestingly it's demonstrating a vertical growth pattern with much larger leaves and unfortunately far less color intensity. It's a drab brown.

I can get some photos if you'd like. It's situated in both tanks such that I should be able to isolate it fairly well for some clear shots.
Sure, go for it. Any notes on conditions and resulting apperance would be great. Thanks!
 
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