---
title: "I need some advice for my sprouting set up for my classroom. I have…"
description: "I need some advice for my sprouting set up for my classroom. I have the seeds in coco coir. There are vents at the top of the domes. Should I open those or…"
url: "https://getplanta.com/community/lZ7uAE3pQ86jnFGxrCwLrg/67gIoqHQBePZhp3MX0IyGk?language=ko"
community: "Anything about plants"
author: "Whitney"
published: "2026-03-31T19:42:45.384543Z"
language: "en"
image: "https://images.getplanta.com/v1/resize/YqF0zWNhI3IhJ1yTKXuhBoXMeL4asg7EmJCHyfj0t3E/vARjNMPWTXOohLQ5yYpAig.webp?size=large"
---

[커뮤니티](https://getplanta.com/community.md?language=ko) / [Anything about plants](https://getplanta.com/community/lZ7uAE3pQ86jnFGxrCwLrg.md?language=ko)

# I need some advice for my sprouting set up for my classroom. I have…

_Whitney님이 2026-03-31에 게시함_

I need some advice for my sprouting set up for my classroom. I have the seeds in coco coir. There are vents at the top of the domes. Should I open those or close them? It’s pretty dry here.  
Also, how many hours do y’all leave the grow lights on? These have an option for 4, 8, 12, or 18 hours.  
Last question: Do you water very often if the vents on the domes are closed?  
I have a couple off the heat mat because we’re doing an experiment on which one works best.  
Thanks for the help!

![1개 중 1번째 첨부 파일](https://images.getplanta.com/v1/resize/YqF0zWNhI3IhJ1yTKXuhBoXMeL4asg7EmJCHyfj0t3E/vARjNMPWTXOohLQ5yYpAig.webp?size=large)

## 2개의 댓글

### Cheri님이 2026-03-31에 댓글을 남겼어요.

For me, I leave the vents open if 2-3 of the cells have sprouted (leaves need air). Once most of the cells sprout, I leave the lid off completely. And I leave the light on for 12hrs for germination, with heat mats on. Warmth, humidity, and light help seeds sprout and begin to grow!

#### Whitney님이 2026-03-31에 답변했습니다.

Thank you!

---

_Planta 커뮤니티 (https://getplanta.com). 누구나 읽을 수 있습니다. 게시물을 올리고, 댓글을 달고, 좋아요를 누르려면 Planta 앱을 다운로드하세요: https://getplanta.com/download_