Keep in mind when it comes to freshwater fish, males have a weaker immune system and are more suseptible to disease. Try looking into that!
For example, male black mollys have been introduced to salt water tanks as a disease detector. This has been done for over 100 years. Not females but male mollys because they get diseases quicker than females.
For example, male black mollys have been introduced to salt water tanks as a disease detector. This has been done for over 100 years. Not females but male mollys because they get diseases quicker than females.
