I’m a beginner with hydroponics and could use some advice. I’m using a VIVOSUN hydroponic system from Amazon and I’ve been getting mixed guidance from different growers.
One person told me to keep EC around 2.0, while another said lettuce should be more like 0.8–1.0. Right now my system is sitting around 1.5–2.0 mS/cm with a pH of 5.5–6.5.
I’m using a complete nutrient mix that recommends 4 tsp per gallon, but I cut it down to 2 tsp per gallon to get those EC levels.
Some plants (especially lettuce) are looking a bit leggy, which makes me think something might be off.
I’ve also been told that my system not having a tilt could cause stagnant water issues. Currently, I run the pump on a 30 min on / 30 min off cycle.
Plants in the system:
– Lettuce
– Pak choi
– Sweet basil
– Scallion
– Parsley
– Cilantro
Main questions:
1. Is my EC too high for lettuce and leafy greens, or is 1.5–2.0 acceptable in a mixed system like this?
2. Could the legginess be from nutrients, or is it more likely a lighting issue?
3. Is the lack of tilt actually a problem, or is my pump cycle enough to prevent stagnation?
I’ll attach photos of each plant for context. Any advice would be appreciated!
by Unhappy_Range
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