Phytoplankton

[jimmypencil]

bought a massive bottle of phyto for my 50 gallon in December not realizing the stuff expires in a couple months. Anyone out there using this stuff past expiration there must be because unless you're dumping gallons into the tank daily there's no way the bottle is empty before expiration for most people unless you have a big boy tank . i got the larger phyto bottle from algae barn because of the price compared to the small.

 

[Spare time]

Maybe try to culture it just for fun

 

[AtlantiCat]

bought a massive bottle of phyto for my 50 gallon in December not realizing the stuff expires in a couple months. Anyone out there using this stuff past expiration there must be because unless you're dumping gallons into the tank daily there's no way the bottle is empty before expiration for most people unless you have a big boy tank . i got the larger phyto bottle from algae barn because of the price compared to the small.

Yeah, look unto culturing it if you can. If you don't need that much, you can do what I do--make a month's worth and refrigerate after a week. Just keep doing it every month and you're good.