Not enough of somethin??

[Al B. Fuct]

Any suggestions?

Yep- you're probably keeping the rw cubes too wet and keeping them in too humid conditions.

Cubes must never be saturated- only damp. A 40mm rockwool cube weighs 5g dry, 25-30g when 'damp.' Heavier than that is too wet. Overwet cubes will cause slow growth and may drown the roots, killing the plant.

Stop misting. Open the vents on the humidome if there are any. If none, prop the dome lid up about an inch or so. Once the taproot is established into the rockwool, the humidome can be left off.

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