Newly bought emersed Java Fern introduced to tank. Need to inject CO2 and add Excel?

[Clausura]

Hi guys,

For the past 2 weeks, my tank was taken over by BBA. I tried to clean it up by spraying Excel directly onto the java fern leaves but only managed to burn the leaves and turned them brown. I cut off the dead leaves, leaving only the rhizome but still the algae took over.

So I removed the driftwood and cleaned it up, gravel vacuumed the tank, cleaned the algae and bought new java ferns for the tank. I bought them from a LFS and they were just in a plastic bag attached to a piece of wood.

Now that they have been placed in my tank, as my tank has a pressurized CO2 setup, should I still inject CO2 and add Excel to the tank so that the BBA does not take over again?

Or should I just let the java fern be, without CO2 and Excel?

How long will they take to acclimatise to being submersed?

Sorry for asking so many questions.

[Mystikboy]

In a plastic bag does not mean they've been grown emmersed; most likely they were just bagged that way for convenience. The bag maintains humidity which allows the plant to survive. Hence your fern should adapt just fine.

As for your algae problems, I think you've to provide more information like your lights and dosing regime. It is typically imbalances in your tank that cause it.
When I spot dose it normally doesn't kill my plants. Perhaps you injected too much? Especially since java fern is a tough plant.

[Peanut8787]

Just put the fern in your tank, it will be fine