Amaranth redroot (Alternanthera sp.)
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Amaranth redroot (Alternanthera sp.)


Information

Common Name: Amaranth redroot
Proper Name: Alternanthera sp.
Category: Stem Plants
Temperature: 17 - 28 C
PH: 5.0 - 7.5
Lighting: High
Growth Rate: Slow
Difficulty: Medium
Origin:
Position in Aquascape: Background,Mid-Ground
 
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A pretty difficult plant to get healthy, yet alone keep alive. It's red coloring is nice though and looks good in contrast to a large bunch of stem plants.
 
Planted Tank Enthusiast
 
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This plant is slow growing for stem plant, hence, some leaves are prone to green spot algae. I've grown it well with 2 to 4 watts gallon in soft water. Without CO2 and EI, the leaves are smaller and grow is slowed considerably. In spite of the slow growth, this is a welcome trait by keeping the aquascape more or less stable from week to week. Once the roots are established, it branches readily and gets bushy. One stem is all you need to get started.
 
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This is deffinatly an unusual stem, as it grows much slower than other stems. However, that is it's only handicap! I love this plant, as it has a brilliant colour and is a cool centerpiece to my tank.
 
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Will concur with the slow growing observation. Gave it a shot under 1.75 WPG strip tubes with CO2, no special fert regime. Not the right tank for it. Pretty much failed...does grow, about an inch per month which you can compare to the moneywort in the same tank which does almost 2 inches per week. Collects algae on it's leaves much like anubias if you have that problem.
 
Pelvicachromis Lover!
 
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Be aware that Amano shrimp like to eat Alternanthera reineckii 'Roseafolia'. While I recognize that this plant page is for Alternanthera sp., I think it's still worth mentioning.
 
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Definatly a slow grower, having some algae problem growing on the leaves. However this plant is without a doubt the prettiest plant in my tank, and is well worth the effort. Stem grows bright red in my tank with pink leaves. I have 3.8 wpg, in a ten gallon with diy co2 and it's surviving, but not thriving
 
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I couldnt keep this plant alive... It didnt melt away... but it became engulfed in algae... maybe just my luck
 
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Whew I thought it was just me. I must have gone through tons of this plant just trying to get it established. Leaves constantly fall off or just melt with the slightest disturbance.
 
Abs
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i have bought a bunch of these and plant them... sad to say it died... i try it in no ferts no co2 and medium lighting.... it died.. hoping i could plant again... T.T
 
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Based on a previous post, I'm not quite sure why Alternanthera reineckii is not an Alternanthera species? Anyway if this belongs in another category please remove it. I have grown Alternanthera reineckii for many years using high light, regular fertilization and CO2. Under these conditions it is easy to grow and very prolific. The color is startling red and is very eye appealing. It will grow emerged from your tank; so, keep it clipped. I have pruned one bunch into a low growing hedge by mowing it down to the substrate every month. I would say that under high light, CO2 and fertilizer, Alternanthera reineckii grows pretty fast doubling in size after three weeks.
 
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One of my favorite plants. Never have a problem growing it.
 
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very hard needs Co2
 
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planted in medium light no ferts and co2. It turns slightly green and grows an inch per month.
 
Algae Grower
 
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Tons of fertilizer and medium-low light does the trick. The fertilizer contributes to the overall health of the plant and makes it produce more roots. Make sure this one's stems are spaced individually.
 
Wannabe Guru
 
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Regarding Alternanthera reineckii 'cardinalis' in particular, since it is one of the plants that Petsmart is now stocking (from Topfin): I wanted to second the comment that shrimp will eat it, particularly if they're lightly fed. My amanos (followed by cherries) stripped three clumps of this bare in less than a day. They're working on the stems now.
 
Algae Grower
 
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A beautiful plant, got it for free when i ordered crystalwort and i can say my riccia has since trippled in size and this has grown a few new baby leaves. I don't know if i should trim older leaves but they are all curly and not too pretty maybe from shipping. But the color is magnificent they look so healthy judging by color alone. The shiniest metallic hot pink you ever did see..

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