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trimming "jungle val"
My jungle val has leaves over 3 feet long in my 20 gallon aquarium. They
sort of wind around at the surface. It is becoming a problem because they
are blocking too much light. When I trim the leaves, they stop growing and
slowly "rust", start to die, and become a home for algae. I don't remember
this being a problem when the aquarium was unheated and had goldfish. I
though Vallisneria was a grass, and thus grew from the base rather than the
leaf tips. Should I be able to trim the leaves when they reach the surface,
or do I have to remove the outer leaves entirely when they get too big.