ACK! Since going to night shift I haven't visited often--hope your arrowheads are still hanging in there. Being a tropical vine they are OK with low light, but they really LOOOOVE being misted regularly. Don't like getting dry roots either--don't drown them, but water enough to keep the soil from drying out completely. Cuttings of Arrowheads will sprout roots and live for very long periods in a vase of water--I had a vase full of blue glass marbles in which I started chinese evergreen, pothos, and arrowhead cuttings; they lived very well in there for several months before I finally planted them in a pot with a BIG chinese evergreen.