SEA-LAB #28 Automatic Replenisher

Naturally occurring buffer compounds maintain ideal saltwater chemistry. Eliminates major water quality problems and limits phosphate, ammonia, and heavy metals. Also buffers pH and provides a constant supply of vital calcium, as well as all other essential trace elements and microelements. Dissolves slowly for gradual change - no possibility of harmful overdose. 1/2 lb jar - 50 blocks (add 2-3 blocks per 10 gallons of water); 2 lb box - 24 large blocks (3-4 blocks per 50 gallons); 2.2 lbs block - treats 100+ gallons. For saltwater only.

Please click on "More Information" for instructions for use.

Formula #28 is the first formula available to hobbyists and the professionals that create and maintain this balance. As elements are depleted from solution, Formula #28 delivers exact equivalent amounts to replace them.

Instructions For Use: Since Formula #28 is fully buffered, there is a constant supply of essential trace elements and no possibility of toxic overload, the dosage and application are extremely uncritical. The blocks can be placed in any location where there is a moderate current. Recommended dosage is three to four blocks per 50 gallons of water. When the blocks are almost dissolved, add a similar number. Older tanks, or those treated with Formula #28 will benefit from an initial treatment of 1 block per 50 gallons for a week or so. This keeps the water chemistry change gradual.