40 Gallon Tank What are these and should i be concerned?

[Winston191]

In my planted tank, these brown spikes have appeared on both my Amazon sword and on my java fern. Does anyone know what they are and if I need to remove them?

 

[jpaquatics]

Both of those plants are actually Java ferns. One looks to be narrow leaf or possibly “regular” Java fern, the other is definitely windelov Java fern (the one with the frilled leaves). The “spikes” are actually the roots of new Java fern plantlets growing from the tips of leaves. One the planlets get big enough, you can remove them and replant them and they’ll grow into another plant.

 

[Winston191]

Both of those plants are actually Java ferns. One looks to be narrow leaf or possibly “regular” Java fern, the other is definitely windelov Java fern (the one with the frilled leaves). The “spikes” are actually the roots of new Java fern plantlets growing from the tips of leaves. One the planlets get big enough, you can remove them and replant them and they’ll grow into another plant.

Thank you, thats good to know