rainbows in low pH
hi guys, I recently got a batch of signifier rainbows online, and lost all but 1. Water parameters are fine except for my pH and TDS.
My pH drops to around 6.0 when the co2 comes on and the TDS is around 280.
My temp is 73 fah, which is low, but I kept it there in hopes of having my shrimp breed one day.
My lfs got some red blue eyed rainbows. But I am scared to pull the trigger after having lost the previous 11.
Thoughts, experiences, advice?