I have a verigated philodendron which is over a year old. I started it from a slip. I don't know why, but it doesn't seem to want to give any verigated leaves, to grow more than one vine and to grow morw than 4 inches long. I water it when almost dry and use fish emulsion from my recycled betta's water. This is the only plant of its kind that I have in my friendship garden and I don't remember where I clipped it so I don't want to lose it. Please, what do I need to do to save it?