yes i figured i added too many at once but in my defence the tetra were actually too small ! less then 1 in much less ! the rummy nose are very sensitive and my tank i dont think had completly cycled ! its doing much better now !! even though i lost ten rummy nose !
and its good to see im not the only one in the state with fish !!
i bought a co2 system and we will see how that helps with ph im also considering RO water for water changes ! between the three i may get the lower ph i want !