Hydroponics

What’s going on in my water? Just started – day three.


Damn, what's wrong with my water? Started three days ago with my first hydro setup and it already goes to hell. 😭
Plants have not even grown roots outside the basket to reach the water.

Background info:
Seedlings in rockwool cubes put into the baskets (I rinsed the stones multiple times before using them), added water to the system and ~1g/l terra aquatic dry part fertilizer 12-6-16 according to scheme.
PH was 5.5, using citric acid to get down from 7.2.
First two days all went well, no foam or any other sign of trouble, PH was stable as well. Third day I saw foam on the water and the PH jumps to 8.5. 🤯

I used tab water since my osmosis system will arrive in 3-4 days or so. Thought it would be OK to start with since there are no roots outside the basket yet.
The buckets were factory new, I thoroughly rinsed them but didn't use any desinfectant or so.

Any ideas what is happening and what to do?

by Lildandee

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