So, about eggshells......
1) Eggshells are used as a pH buffer in aquaponics systems, but what does using eggshells bring your pH levels to? (assuming you're using an adequate amount)
2) Does the pH need to be at or below a certain level in order for the eggshells to be good for supplementing calcium?
Try lime stone pieces .. add or take as needed ...
Thanks Paul. I was just curious about a few details regarding eggshells.
They seem like they hold the water at a pH of around 7.6. My system was lacking in calcium at the time and I was wondering if eggshells gave off calcium in a plant available form or if there were any parameters that needed to be met in order for that calcium to be utilized properly.
I don't know but I put all of our eggshells in the media beds, just to put them to use. I still use Potassium Bicarbonate too.