Fungus gnat on seedling media

[Jeremy T]

Hi,

A week ago i purchased 10 Cattleya seedlings, "newly" deflasked, from a nursery. I separated 5 of the seedlings and attached them to a big piece of lava rock (midst 5 times a day) and they are growing faster (bigger leaves and root) than the ones remained in the original pot.

A few days later, I noticed small flies around the pot. Thinking it might be fruit flies, i took the pot (and the lava rock) into another room. I can see these same "flies" are flying/crawling everywhere around the pot. Google pictures indicated it to be fungus gnats. The seedlings are growing new roots, leaves and several have new growth at their side. I have also found tiny baby plants underneath the bark between the roots.

So, should i disturb the seedlings (im guessing several weeks old) by :
1) repoting them on fresh media?
2) dose the pot with hydrogen peroxide and rinse thoroughly with distilled water?


Thank you so much for your time.

J