Who Gives A Fish Forums

Following up from coltin's post, I'd say it's essential to prioritize the Corydoras first. They really need to be in a group, and I'd recommend a minimum of 12-15 in a tank of this size to ensure they thrive. A soft sand substrate is also crucial for them.

The 12 Tiger Barbs you have seem fine ...

To better understand your tank's conditions, I'd like to know your maintenance routine. How often do you perform water changes and what percentage of the water do you replace? Additionally, what's your feeding schedule like, and what type of food do you provide for your fish?

If you're doing ...

i currently have a 50gal tank with 12 tiger barbs and 2 panda corys. i'm planning to add maybe 4-5 zebra danios, is this possible or would it be overstocked? thanks