How do I make the soil a little more acidic? The Ph is 7....

2ft to light, indirect

3β pot without drainage

Last watered 3 weeks ago

Beyond adding a well balanced fertilizer, I recommend adding nothing.
You want a fertilizer with a balanced NPK, that will give you a balanced soil PH.
This is what your priority should be, if you try to manipulate any of those three elements without balancing the others you will have an unhealthy plant.
If fact if your counter on acidic it can actually make the soil quite toxic which can kill and shock certain plants.
When you start adding minerals it has a great impact on overall health and usually in a bad way.
An alkalinity of 7 is actually right in the middle of the range which is good for almost every houseplant.
Now if you want to add a little bit of acid that won't plummet you to the other end which could hurt your plant you could make your own soil with
1/3 peat moss-naturally acidic
1/3 perlite
1/3 bark
Since they are epipytes and grow on trees you don't really want to use 'dirt' which is essentially clay and silt. They are just too heavy and hold way too much moisture for your plant to be healthy.
But I would not add any one thing to your soil, because messing with a plants PH through additions to soil is just too risky.
You want a fertilizer with a balanced NPK, that will give you a balanced soil PH.
This is what your priority should be, if you try to manipulate any of those three elements without balancing the others you will have an unhealthy plant.
If fact if your counter on acidic it can actually make the soil quite toxic which can kill and shock certain plants.
When you start adding minerals it has a great impact on overall health and usually in a bad way.
An alkalinity of 7 is actually right in the middle of the range which is good for almost every houseplant.
Now if you want to add a little bit of acid that won't plummet you to the other end which could hurt your plant you could make your own soil with
1/3 peat moss-naturally acidic
1/3 perlite
1/3 bark
Since they are epipytes and grow on trees you don't really want to use 'dirt' which is essentially clay and silt. They are just too heavy and hold way too much moisture for your plant to be healthy.
But I would not add any one thing to your soil, because messing with a plants PH through additions to soil is just too risky.
@SuperbRaspfern wow I Thank π you.
@AnthuriumQueen I'll try π thank you