Torch Nodules?

[Chemi]

Thanks for the replies guys. After close inspection of the torch, I did find a hard round casing on the outside. I scraped it off and a bug was swimming in the dish. The flow is intermittent in that area, I did move the power head aim as well though to be thorough.
PH 8.05
SG 1.024
Ca 400
Mg 1410
Alk 11
nitrate is undetectable
Temp is 26 or 28°C depending on which gauge I look at.
Big 3 are brand new Red Sea kit. PH is lab grade probe and meter.
waiting on phosphate kit.