Well from the instructions on a bottle of Prime:
May be added to aquarium directly, but better if added to new water first. If adding directly to aquarium, base dose on aquarium volume.
Now I do 50% water changes weekly on my 50g and I don't really care to lug around close to 25g of water so I just treat the tank myself.
May be added to aquarium directly, but better if added to new water first. If adding directly to aquarium, base dose on aquarium volume.
Now I do 50% water changes weekly on my 50g and I don't really care to lug around close to 25g of water so I just treat the tank myself.