Anacharis Don't Seem To Root

[sammclean23]

Hi All,
 
I have a shed load of Anacharis in my tank, however, everyday there always seems to be one that uproots and floats around the tank.
 
Most of them are fine and are growing rapidly, but the smaller ones always end up floating.
 
I tried planting them as a 'bush' as recommended elsewhere, but this seems to prevent smaller ones growing as they are obstructed from light etc.
 
Can anyone help please? tending to these things is beginning to feel more like a chore than a hobby now.

 

[betta fish]

You could either try weighing them down with lead weights or terracotta hoops till they root or just letting them float until they grow and root this will then make it easier for them to be planted.

 

[sammclean23]

You could either try weighing them down with lead weights or terracotta hoops till they root or just letting them float until they grow and root this will then make it easier for them to be planted.

 
Thank you! Will give it a try.