Mysterious die off
I've had my 29 gallon dirt tank stocked for a week now and I've lost 4 glow light tetra with no sign of a cause. I'm running 2 AC30s while I wait for my xp3 to come with a fishless cycle so ammonia and nitrites are 0 and nitrates are less then 10. My first thought was an ammonia spike when I found 2 dead at the same time but the others have come a 2 days apart. I'm in the middle of doing a large water change before I dose with PraziPro but haven't seen anything that makes me think it would a worm. The fish seem to be fine when I turn off the light then in the morning I find one dead in the filter uptake. Any ideas what could be the cause or is shock from the move killing the weaker fish?
20 gallon tall: empty
29 gallon: moderately planted with 9 bloodfin tetra, 1 german blue ram, 11 glow light tetra and 1 BNP
10 gallon QT: empty