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5V button cell batteries (LR44 or equivalent
Comes factory fit with 3/4" barb
Your ferret is sure to be a hit in this new sweatshirt by Marshall
step-by-step instruction booklet with computer calibrated colour chart which provides information on how to correct unsafe water conditions
Salifert Potassium Reef Test Kit (up to 40 test) Bird Toys 5V button cell batteries (LR44The Potassium reef test can be performed in about 90 seconds. This tritatic test kit has a sharp color change, going from yellow to blue, when you hit the level in the sample. Potassium concentration in natural seawater is approximately 400 ppm. Many aquarists have reported that a low potassium value reduces colors in corals. This can be corrected by increasing the potassium value to the normal natural concentration. Now you can accurately measure
