Backyard Aquaponics
A place to discuss aquaponics

i put some duckweed in a 10 gallon aquarium tank to the point where it covered the entire surface.

then i scooped it out now and then to feed the goldfish in my ap system.

i' havnt scooped any duckweed out of the growing tank for 2 and half weeks now and it is not regenerating.?


there are several fish in that tank and a snail.

Hi V, I am also having trouble keeping the duckweed growing - had a good bunch of it on the surface to start then the bigger ones are gone now and the little ones are almost gone too. pH probably has something to do with it, as you have fish in there to provide nutrients.

Ell or F&F would know; their threads have nice pictures of duckweed ponds.

I gave up on trying to raise duck weed with P or chicken poo. I just used a hydroponic plant food and it grew like mad. The duck weed in my fish water is doing well, but it seems to grow slowly.

Put some glass or plastic over the container. They seem to like a fair bit of light and humidity. Just watch it doesn't cook.

I have never added anything except seasol to the water. My azolla was doing the same thing at the start of winter, I covered it up and since then I have too much... I have been drying it and mixing it with the tropical flake.

Bet your fish are eating the roots, though I agree with TC the temp could be an issue, different varieties prefer either cold or warm, which do you have Valduare?
C1