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The amount of soil has little influence ; Drainage holes and the nature of the soil are the important factors. Cacti generally need "fast" drainage soil , mostly sand ,gravel, or similar. I have a large "Christmas " cactus that gets covered with blooms. It grew well and was overflowing the pot. I got a larger pot ( with plenty of holes), ...
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Usually it is ok to over-water plants (once), for sure the pineapple should be able to cope with that (think about the weather they have on their native environments). Just you should be sure your pot as drainage holes on bottom (as any pots should have), so that excess water will flow away in reasonable time. Good soil choice will also help watering errors (...
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It looks as if the fungal growth is associated with debris on top of the soil, but it's also highly possible the soil itself is overly damp or wet. Whilst these plants might be thought of as needing little water, they should be watered thoroughly when the surface of the soil feels dry to the touch, with excess water being allowed to drain away freely from ...
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Lack of light is why the plant is dropping leaves. Growers try to acclimatize plants by putting them under shade cloth for a few months but your plant is quite far from any sunlight.
Move the plant next to a window facing south, east or west.
For most indoor plants the foliage is thin enough if you can see your hand when you put it behind the plant.
There ...
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