I've got some dwarf sag too, and I kind of like it overgrown and not neatly trimmed! My microsword is not really growing much though. Thinking of removing it and replacing it with more dwarf sag.Dwarf sag, they're practically unkillable, do well in all lighting conditions, spread like weed, no need for ferts or co2. I've had great success with this plant.
This is the growth after 3 months in the shrimp tank with DIY co2 and sporadic fertilizing, the substrate is sand.
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And here it is in my 55 ultra low tech "barely turn on the light" tank
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Those dwarf sag are tall! O.O