:smoking: no worries dude! Usually, no news is good news,... and sometimes I just plain miss things here, if so just tag me! That's not a bad yield considering, and remember with organics (yet alone this style of), one isn't looking for big yields necessarily, soilless and DWC are the champs for that,... it's the
quality that organics are about with most folks!
Might be time to get a new meter, from HM or BlueLabs for example,... spend a little more, and get the type that you can replace the measuring electrodes... and always, you need calibration (7.0 for sure, and 4.0 too if you can; do both at the same time back to back) and storage solutions, and to rinse it clean every time! These meters are sensitive gear, and any abuse will ruin accuracy....

-never immerse the A8 in water! Strictly in-pot use only, and be sure to scrub that tip area clean every use, and let it sit for a few min. to stabilize reading,...
...new probs, new pics needed! Also other info too, like lights and distance, soil pH too-