Does anyone know the shelf life of Bio-Spira? I have a package in my refrigerator that's about 6 to 8 months old and has never been opened. I'd like to use it to start a 29 gallon freshwater tank (no live plants). Thanks.
Try Fritz-Zyme Turbostart 700, it works exactly the same as Bio Spira
Pufferpunk said:It is in no way the same product & is only a temporary fix to cycling preoblems. Only B-S will instantly cycle a tank, nothing else.