Thank you all so much, I put fish in last night thinking I would just make a trip to PetSmart (in the next town) today and pick up some Bio Spira, OH NO the employee I talked to there never even heard of it.
Internet searching began, found a store 72 miles away that has it in stock for 25.99 to treat up to 90 gallons.
Thanks again for answering the question so quickly>
SKEET in TEXAS
55 gal rectangle , Turbo Twist UV sterilizer
RENA XP-3 , Hydor in-line 300 heater
FISH--23 Tiger Barbs(3 green,3 albino,17 reg) ,1 pleco, 1 rainbow shark, 2 algea eaters
30 gal Hexagon tall , Hydor in-line heater
FISH--2 Angels,5 F Guppies,1 platy,1 pleco,1 algea eater