Beginner Gardening: Pineapple - Brownish-Red spots on leaves , 1 by Karthikeyan

Karthikeyan wrote:
I’m a first time poster here and a started in home garden.
I have a pineapple crown planted in the pot, Started seeing the brownish-red dots all over the matured leafs from last one week. Could anyone comment, is it normal or any is due to deficiency or insects. Any suggestions in case if this is not normal?
It was planted from the crown of a ripe fruit. Right now no fertilizers applied. Watering is done on alternate days, just enough to keep the soil wet. The pot is placed in the balcony, and direct sunlight for about 2 hours during the morning time and rest of the time it is under the shadow only. Grown for about 8 months, matured leafs are 12 to 18 inches long. Checked the plant and no insects are visible.
Thanks in advance!