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Looking for info on easy aquarium plants with a ton of variety for any part of your tank? You've come to the right place. Here, we'll break down the Echinodorous genus of plants, highlight some epic sword species, and give you tips and tricks for keeping your swords looking sharp.
(Scroll to the bottom for a quick reference guide for how to care for Amazon swords!)
About Amazon Swords
They're called "Amazon" swords because of how prevalent they are in the Amazonian regions of South America, but these plants are native throughout the Western hemisphere. How they came by the "sword" part of their name is easy to see with their blade-like leaves.
Echinodorous belongs to the Alismataceae (water plantain) family, making it a cousin to another popular group of aquarium plants: Sagittaria.
Types of Amazon Swords
There are at least several dozen species of Echinodorous currently recognized, but they hybridize in the wild (and in aquariums) frequently enough there are too many subspecies and cultivars to organize quickly.
You'll see a lot of these plants also listed under the Helianthum genus. The names are synonymous, though, so don't worry about trying to decide which of two species would work best for you. Because Echinodorous hybridize so often (and so quickly), categorizing all of them hasn't exactly been easy, so their taxonomy changes as we get more info. Honestly, it's hard to know exactly how many sword varieties there are at this point, but it works in your tank's favor!
Also note there is a specific plant called the Amazon Sword (Echinodorus amazonicus/Echinodorus grisebachii), but in the aquarium hobby, anything Echinodorous is often colloquially called "Amazon Sword" or just "sword plants." So if you're looking for THE Amazon Sword in particular, be sure to specify and know what you're buying.
Check 'em out:
This variety has some of the best color on the list. Look at all the shades of red, gold, and green running through the stems and leaves.
The looks come at the cost of needing a little more TLC, but a healthy Hybrid Red is worth it. Bit of advice on this one: if you want it to keep that rich color, keep it in higher light. Why? Check out our other blog post on keeping red aquarium plants!
Hybrid Red is actually crossbred from one of the other species on this list, Deep Purple.
A Brazillian species, decumbens is just as easy as other swords, but prefers temps on the warmer side. This species gets tall, so use it in the midground or background.
Always thought "major" was an appropriate species name for this one, because it can grow pretty tall and does it rapidly. With thick, ruffled leaves, this plant would make a great addition to the midground or background of any tank.
Want a quick and easy foreground plant? Give quadricostatus a shot! It sends off runners and grows like a lawn in good substrate. Compare it to Dwarf Chain Sword down below.
(don't worry - won't cause smoke on your water)
Like the Jaguar variety below, it's clear how this sword got its name. This could be a great, subtle change of color to break up the green in a heavily planted tank without too much extra work.
It's not hard to see why they call it "Jaguar." Most folks see spots on their plants and panic, but this species naturally has dotted, mottled leaves.
If you're looking to start a carpet and you have some experience with aquarium plants, Dwarf Chain Sword could be an awesome fit for you.
Easily one of my favorites on the list, vesuvius has light green, spiraling leaves for some unique texture in your aquascape. Not exactly sure how it got the name "Vesuvius," but the word Vesuvius comes from a word in an extinct Italian language meaning "smoke." So maybe the botanists thought it looked like spiraling smoke.
Regardless, it's an amazing, easy plant you're sure to enjoy.
Other species include: Echinodorus barthii, Echinodorous radicans, Echinodorus subalatus, Echinodorus uruguayensis
Quick Care Guide for Echinodorous
-Foreground species: quadricostatus, tenellus
-Midground species: decumbens
-Background species: major; argentinensis; Jaguar; Deep Purple; vesuvius
CO2: Many will do fine without supplementing CO2 *as long as you have their "food" needs met* but swords will also thrive with CO2
Fertilizers: Heavy root feeders, so make sure you have either nutrient-rich substrate or are using good fertilizers (root tabs are great for them). Consider dosing with iron as well. Many species on this list technically *can* grow without ferts if you have good tap water, but they look way better with them.
Lighting: varies by species, but usually moderate
Tank mates: nearly anything that can handle a tropical range; these plants can thrive across a huge range of conditions. As always, watch out for them if you have fish like cichlids, though, especially the finer-leafed species on this list.
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