Without testing each nutrient individually it will be tough, there are deficiency charts out there but they can be tough to distinguish. The best way to avoid these issues is to dose an all around aquarium fertilizer to ensure you have enough.
Without testing each nutrient individually it will be tough, there are deficiency charts out there but they can be tough to distinguish. The best way to avoid these issues is to dose an all around aquarium fertilizer to ensure you have enough.