Java fern turning brown!?

[Jules1]

I had no problem growing java fern. In fact it grew like a weed in my tank.

That was until i raised the pH in my tank.

With the increase in pH the java fern has begun to brown in parts exposed to the most light.

Originally the tank was very acidic (pH 5-6) due to some bog wood, which the java fern loved as a base.

When I wanted to add new fish to the tank from a store, I needed to raise the pH to more neutral conditions to prevent new fish going into pH shock.

Now with the higher pH (7.2) the java fern is suffering.

Although it is supposed to grow between pH 5 and 8, from my experience java fern is very light sensitive at higher pHs.