Best alternative to duckweed?

[SQW]

My Walstad tank is almost ready for fish and invertebrates, however, the duckweed is reproducing at such rates, that whenever they die off, they create this layer of mulm on the bottom of the tank. Is there a better alternative to duckweed?

 

[StarGirl]

Frogbit or Salvinia are popular floaters.

 

[bettafairy]

Water lettuce! Or Hornwart if you want to try something a little fluffier.

 

[ChrissFishes01]

I really like my Red Root Floaters.

 

[Hugooo]

I agree with StarGirl... and I've also heard that red root floaters are good.
Are you going to make a thread for your tank? I'd love to see the progression!

 

[StarGirl]

I really like my Red Root Floaters.

Forgot those. The best ones! lol

 

[Basil]

I really like my salvinia minima. The roots don’t get too long tor a smaller tank.