Potting Soil Problem
 

I'm a little worried about my orchid. I'm using the Compo potting soil brand and look what happened!!
What are this white spots? Will it damage my plant?

This is a Phalaenopsis, right? Those white spots look like mold spores. These also look like tiny insect eggs.

In either case, take your plant out of its pot, remove the potting media and repot it in fresh.

Going forward, allow the plant to dry out before you water. Carefully push a bamboo or wooden skewer into the root mass to test for moisture.
Grow the plant in warm, bright shade.
Provide plenty of fresh, moving air.

Hi, thank Matt.
Yes it is a Phalaenopsis. I have a new leaf and a root growing, can I replant it anyway?
maybe it's better to place her outside?!

When an orchid is growing new roots is the BEST time to repot. You mention "potting soil" but it looks like bark at least on top. Phalaenopsis (and most orchids) hate soil... large bark provides surface for moisture (to create humidity around the roots) but permits lots of air to reach them too, and that is vital.

What is your overnight low temperature? Phalaenopsis orchids don't like temperatures below about 15 deg C (60 deg F) If night temperature is warm enough and you can provide daytime shade, it will be very happy outside.

Hi, it looks like a mixture of soil and bark.
I am not pleased with my purchase. What a waste!!
I live in a tropical country, the night temperature is
22°C.

Phalaenopsis would be very happy outside with some shade. If your humidity is high, that is even better. In nature, they grow (with roots exposed to the breezes) hanging from trees, in the Philippines and surrounding islands. It's hot, humid, and rains a lot. The plants get drenched by the rain, then dry out when it stops. So the closer to those conditions you can manage, the better they'll grow. I would suggest coarse bark in a well-drained pot, or even just stones, wine corks, just about anything to hold the plant stable. But air around the roots, and that wet-dry cycle, are the goal, whatever means you use to achieve it.

Hi Makiabra,

I think your plant should grow well in your climate. Give it mostly shade. Fungus may grow on plants without causing any problems at all when humidity is high.