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Discussion Starter · #1 ·
I just finally got in the pearlweed I ordered three weeks ago to finish planting the rescape on my 20g nano. I've planted it in individual stems roughly an inch apart all along the back sides of the tank behind my driftwood.

I'm so excited to finally have all the plants in after a month of waiting & working on the tank (mostly waiting for online orders to trickle in), and pearlweed is one of the new species I've never actually tried before. The CO2 arrives tomorrow, so I'll be setting that up over the weekend so I can keep an eye on it the first day it runs.

How do I get my pearlweed go grow up, instead of turning into a carpet? The little stems seem prone to going sideways and rooting down horizontally, but I want it to form a nice, tall, fluffy bush, about 10" high, to fill in the background of the tank.

I've seen it done in pictures, but all the growing/care instructions I found online say "it can be grown both as a tall stem or as a carpet", and then proceed to tell me how to trim it flat to look like monte carlo.
 

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I've been trying to do the same thing! Hope you get an answer... I would assume lower light makes them grow taller but maybe there's something else to it.
 

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Pearl weed grows in a great big clump in every direction it can go. Hence the weed part of the name. Just hack it back when it tries to go directions you don't want it to go. Eventually it will grow up as well as out.

Honestly its not a great plant for the well manicured aquarium because of the rapid speed it grows into a giant ball of green. It is a great plant if you just need plant mass in a tank and don't want to be bothered with plants that are more fussy. I hope it works the way you want it to, but if your experience is like mine, then you will probably replace it with a more orderly plant inside of a year.
 

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Discussion Starter · #4 ·
Pearl weed grows in a great big clump in every direction it can go. Hence the weed part of the name. Just hack it back when it tries to go directions you don't want it to go. Eventually it will grow up as well as out.

Honestly its not a great plant for the well manicured aquarium because of the rapid speed it grows into a giant ball of green. It is a great plant if you just need plant mass in a tank and don't want to be bothered with plants that are more fussy. I hope it works the way you want it to, but if your experience is like mine, then you will probably replace it with a more orderly plant inside of a year.
I want a bit of a wild look, so I don't plan to try to manicure it too much as long as it doesn't totally take over the tank.

That said, are there other easy-to-medium plants you know of that are similarly small-leaved? It's extremely difficult sometimes to tell just how small the leaf structure is in online photos, and I'd love backup options if it doesn't work out well. I'm trying for some forced perspective in the tank, which is why I chose it.
 

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I want a bit of a wild look, so I don't plan to try to manicure it too much as long as it doesn't totally take over the tank.

That said, are there other easy-to-medium plants you know of that are similarly small-leaved? It's extremely difficult sometimes to tell just how small the leaf structure is in online photos, and I'd love backup options if it doesn't work out well. I'm trying for some forced perspective in the tank, which is why I chose it.
Rotala is a good choice and definitely better mannered then pearl weed which will definitely take over any tank if left to its own devices.
 

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Discussion Starter · #6 ·
I actually have some rotala rotundifolia in the tank midground. I've grown macranda, macranda narrow, colorata, magenta and wallichii in the past, and I love rotala, but it's a bit big for the look I'm after.

There just aren't a lot of really tiny-leaved plants in the hobby, at least that I've ever seen, that aren't carpet plants.

Online is great, and most of my plants are bought online, but you just can't see for yourself what you're buying. One of these days I'm going to have to drive the 2 hours down to LA and see some of the aquarium shops I keep hearing about so I can pick out some good plants (and fish) in person.
 

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How do I get my pearlweed go grow up, instead of turning into a carpet? The little stems seem prone to going sideways and rooting down horizontally, but I want it to form a nice, tall, fluffy bush, about 10" high, to fill in the background of the tank.
you mean like this?
1025425


i replied to an earlier thread you posted about getting the beamswork da fspec for your20h. i have the same set up. this stand of hemianthus glomeratus was started 7 weeks ago after it lifted up entirely from the substrate (which it inevitably does). planted 3-4 stems set 1/2-3/4" apart, about 1" exposed. started beamswork at 85% for first 3 weeks, currently at 80%; light is 11" from the substrate. photoperiod is 6h 45m. lean dosing of 3-1.5-12 weekly. 3 year old dirt substrate. did first trimming after 4 weeks.
 

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you mean like this? View attachment 1025425

i replied to an earlier thread you posted about getting the beamswork da fspec for your20h. i have the same set up. this stand of hemianthus glomeratus was started 7 weeks ago after it lifted up entirely from the substrate (which it inevitably does). planted 3-4 stems set 1/2-3/4" apart, about 1" exposed. started beamswork at 85% for first 3 weeks, currently at 80%; light is 11" from the substrate. photoperiod is 6h 45m. lean dosing of 3-1.5-12 weekly. 3 year old dirt substrate. did first trimming after 4 weeks.
Holy crap! What are your water parameters? I’ve literally had my pearl weed for over a month in a high tech and it’s not growing nearly as fast as I was hoping at all :(


Sent from my iPhone using Tapatalk
 

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Discussion Starter · #9 ·
Mine is getting adjusted still, but seems to have gotten used to my tank. Had a little melt right after planting.

I received my co2 kit this week and got it set up this morning, so hopefully it gets going a bit quicker now. It is growing up so far though, thankfully.
 
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