Root growth rate of frogbit and dwarf water lettuce

RampageRR

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MFK Member
Apr 29, 2012
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I originally bought 5 or so plants of each of frogbit and dwarf water lettuce. Fast forward 3 months or so and my entire 6 foot tank has been covered - I am completely fine with this and expected them to grow quickly. However, I'm only seeing 1" to 1.5" of roots hanging down into the water column. My goal was to cover the mid-water level in roots for my exodon shoal to swim/dart in and out of. I'm not seeing any root length at all - does anyone know if there's anything that can be done to grow them out longer rather than have the plants continue to propagate up top?

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Raka

Candiru
MFK Member
Oct 22, 2019
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Water movement is key. Less movement will encourage root growth as they seek out nutrients.

My pleco tank keeps all the roots at less than a half inch with lots and lots of movement. Fiancee's nano tank sponge filter only has 8in long roots across all the frogbit.
 
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