How long are you leaving your lights on for?

Duckweed prefers still water. Do you have a lot of water movement?

DiY your setup to make less ripple near the floating plants they hate getting water on top of their leafs. Also proper lights.

I have one tank where it never grows, thank god. One tank where it more or less maintains itself, with very slow gains over MONTHS. One tank where I have to remove as much as I can every 2 weeks or it starts piling up and blocks out the entire light, and one that I have to thin out about every 5-6 weeks. So I have most if not all of the bases covered with this stuff. lol

Put your lights on a timer so they run 8-10 hours depending on how much natural light hits the tank. Timers are game changers. Consistency is key. Add flourish liquid fertilizer and root tabs and that should help.

I would gladly send you more if you give me postage.  It took over my snail pond and dark water tank. I really think its too invasive for aquariums but using sponge filters would give you less surface water on top of them and the same amount of agitation and filtration.

Can’t Keep Duckweed Alive

I can only grow it in one tank, and it’s not a tank with a particularly great light, which I don’t even turn on until about 7pm and then I’m lucky if I leave it on more than 5-6 hrs. Duckweed hates water movement, and this tank has a little air driven box filter, so less movement than any of my other tanks. Even my tank with a matten filter kills duckweed.

Aww so I figured out: way too much movement. 😞 that’s my issue  but idk how to change that.

create a floating ring u can use air line tubing or section off with pool noodle strip or something like that to have a safe spot for it to grow.

Another bruce growout breached the surface feeding this morning. So funny it went flying across the surface and landed on top of the plants, had to wiggle off lol. Being with much bigger fish they are very agressive eaters.

The fish were probably eating it. Especially if you’ve recently had fry in the pond. A lot of people think because amphs are aggressive that they are 100% predators. But will eat plants. I used to feed mine spinach and such.

I believe it. Lots of young fish in yhere competing for food. I do notice when i bring fish in from the pond they have green shit. I also see bites out of the floating plants here and there. Anyway im.glad its gone, duck weed is annoying.

I can’t stand duck weed in a tank with flowing water and filters. I don’t mind it in still tanks with sponge filters. It depends on the damage.

Try anubias tied to a rock (never bury the roots unless you know what you’re doing). If those completely die there’s another issue. I’ve grown those in ambient light.

surface agitation is the most common issue with floaters generally they dont like being bumped around.  a lot of fish will eat the shit out of duckweed too.

Don’t give up. When I started I couldn’t even keep Amazon swords alive. This is the best part of the hobby, cuz when  everything trives it get boring.

Duckweed doesn’t like flow. You probably have to much surface flow in your aquarium.

Java moss was the plant of choice I killed

A bunch of when I first started into the hobby. Turned out you can’t do a Dry start to try to get java moss to carpet. Didn’t appreciate the dry start.

Use a bubbler to redirect the surface current and create a calmer area where the duckweed can congregate, touch eachother to minimize them swimming around, and eventually start growing like crazy.

I’ve resorted to floating rings made of 1/4 rigid air tube to keep some areas clear and allow some light to get to my non floating plants.  I have minimal water movement.

I usually target the bubbles toward the middle or back to push the duckweed to the sides and front.

I find that my duck weed dies off when my PH is getting too high.  Same goes for bladder snails. People complain about them and I can’t seem to keep them

If they are getting pushed below the surface by a HOB filter, you need to create some sort of guard so they stay away. Bubbles might work, but something that floats and can cross the surface also works. This could be a skewer with something buoyant on the ends.