General health and colorIs there a reason for your desire to supplement? For me personally I add frozen foods such as blood worms and brine shrimp to my betta's diet because he's carnivorous and it's a high quality source of nutrients.
General health and color
Your question is fine.Sorry for all the questions, but what's the species of fish? Requirements differ.
Essentially that is the concept. I've felt like it's been working so I just keep doing it.So you mean you are gut loading you black worms for more nutrition?