a sudden change to the ph can kill your fish, if you apply anything to bring it down, to it slowly..
my ph started high. right at the edge of both the low range and high range test.. but it eventually fell
get yourself a "master test kit", i found mine at a petsmart for about 24 bucks
the hardest part of starting a system is practicing patience
sorry for misunderstanding your ppm query..
No worries man! Thank you for responding with me.
Current Aquaponics System
11 Gold Fish
Aquarium = Custom 90 Gallon Raised Pond on casters
Flower bed = Custom 4' x 8' Flood Table (Bell Siphon)
Bio Filter = 6 Gallon Polypropylene Tote with Hydroton (Bell Siphon)