I have a Guzmania Rena. I have 2 pups that I separated from the mother and replanted them (BTW, the mother is alive an doing well for long time after the bloom died). They are getting filtered sun. I've noticed that lately the leaves are becoming brown on the outside , starting from the base toward the tip. It's not a drying brown but rather dark brown/redish color. Is it because too much sun, too much water or too little water?

When the pups are young they do not hold the water in the cup so I fill the cup quite often. Is this a problem?

Thanks