feeding solution EC came out way lower than expected any thoughts?(RQS Titan F1, RQS Green Gelato Auto)

Soil EC meters and water EC meters are different because they measure the electrical conductivity (EC) of different things: Soil EC meters Measure the ability of soil water to conduct electricity. Soil EC is a measure of the concentration of ions in the soil, which are carried by salts dissolved in the water. Soil EC is expressed in milliSiemens per meter (mS/m) or deciSiemens per meter (dS/m). Water EC meters Measure the EC of water extracted from the soil, a well, or a piezometer. A probe attached to a meter can be lowered into a well or piezometer to measure the liquid EC. Soil EC measurements can be affected by many factors, including: Temperature Warmer temperatures increase the activity of ions, which allows them to conduct electricity better. Soil grain size Finer grained soils, like clay or silt, produce higher EC signals than coarser grained soils, like sand or gravel. Soil salinity Soils with high salt concentrations have increased electrical conductivity. High salinity levels can negatively impact plant growth. Hope that helps.

Even when growing in soil ec is important! I suggest you read the "grow guides" on the Mandala Seeds website, they have some very good advice that you will find very helpful. mandalaseeds.com

Its just additives, your main base is slowly released in soil, would say you could add a bit more at start , they look hungry for me ...

Hey there when useing soil you don't need to worry about ec really. Just make sure to use proper amounts of nutrients the labels or will tell u proper amounts and some companies have charts to go by for several nutrients together. Other than tht you just need to ph rhe water every time in-between 5.5 and 6.8 I like to shake it up and change my ph just a little every time some people shoot for an exact 6.4 or something but every macro and micro nutrients uptake better at diff ph levels