Three Ways to Order Your Science Supplies

Online - Credit card, check
or your account.

By Phone800.628.7748

 

CTValley Bio > Aquaria & Terraria >

Water Testers

Checker® (pH Checker)

AP72
Hanna. At the cost of a few rolls of pH litmus paper, you ...
$35.00

Replacement Electrode for the Checker®

AP73
Screw-in type. Fits AP 72 Checker 1 pH Testers. Has automatic temperature compensation ...
$23.00

Seachem Ammonia Alert

A2778B
An easy to use device that monitors free ammonia concentration in the aquarium. ...
$8.50