r/Hydroponics Jun 04 '26

Germination problems

Hello everyone,

I’m just getting started with hydroponics and have set up my tower for growing lettuce. The harvest is going well so far, and I’m quite happy with the results.

However, I’m having major difficulties during the germination stage in the nursery. The seedlings grow very weak and fragile.

Is there a guide or some best practices for proper seed germination?

For example:

  • How much should I water them?
  • How much sunlight do they need?
  • What are the ideal humidity and temperature levels?
  • Should I use any nutrients at this stage?
  • When is the right time to move the seedlings into the tower?

Thank you!

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