Bulkhead 1-1/2" Slip/Slip (black) Active then follow addition regimen above

then follow addition regimen above until magnesium is adjusted to 1200–1350 mg/L

BEGINNER: Use 5 g (1 level teaspoon) per 80 L (20 gallons*) twice a week

000 ppm magnesium

Formula Two

*Air and water results will vary depending on aquarium setup

Bulkhead 1-1/2" Slip/Slip (black) Active then follow addition regimen aboveHole size chart for schedule 40 standard bulkheads (the black ones) bulkhead Size: 1 2" = Hole Size: 1 1 8" or 1 1 4" bulkhead Size: 3 4" = Hole Size: 1 1 2" bulkhead Size: 1" = Hole Size: 1 3 4" bulkhead Size: 1 1 2" = Hole Size: 2 3 8" bulkhead Size: 2" = Hole Size: 2 7 8" Hole saw size 30mm Glass Drill bit works with 1 2" schedule 40 standard bulkheads 35mm Glass Drill bit works with 3 4" schedule 40 standard bulkheads 45mm Glass Drill bit works