I've had what I thought was great luck in a low light tank with java fern
and sunset hygro.. the javafern looks great, but the hygro, well, it's NOT
looking so great....

Nearer the top, it keeps it's leaves, but near the bottom, they get holes
and drop off, leaving a bare stalk...

Is this a deficiency??? It grows like a weed at the top, but drops leaves as
it goes... could it be too low of light for the bottom, because it IS
growing as is everything else in the tank... could the bottom be shaded too
much to grow, therefore dropping leaves???

I've browsed Chuck Gadd's excellent articles about deficiency and either
it's iron, mg, potossium, or something else????

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