Thanks for all your help.
Only have 3 cardinals left now, but my other fish are fine!!!!!!
Just done tests on water:
Left to right
Nitrate 0 ammonia 0 ph 7.5 nitrite 0
Couldnt get through to shop today to find out their PH, but its close to the other shop i buy from, so guess they must be on the same water mains and shouldnt be different really.
But if it was PH shock, it still doesnt account for my Betta that got those infections, or could it have been a BIG coinsidence
?
Only have 3 cardinals left now, but my other fish are fine!!!!!!
Just done tests on water:

Left to right
Nitrate 0 ammonia 0 ph 7.5 nitrite 0
Couldnt get through to shop today to find out their PH, but its close to the other shop i buy from, so guess they must be on the same water mains and shouldnt be different really.
But if it was PH shock, it still doesnt account for my Betta that got those infections, or could it have been a BIG coinsidence
