Who Gives A Fish Forums

If you're doing everything right and they're still not growing, it might be worth isolating one or two in a smaller tank with perfect conditions. Sometimes they just need a reset to kickstart growth.

Have you checked for internal parasites? Sometimes they eat fine but don't grow because of worms. Metroplex in the food might help. Also, what's the filter type? Canister filters are best for keeping the water pristine, which is key for growth.

Consistency in their shape is key. A healthy Discus should have a round, symmetrical body. Avoid any with visible deformities or uneven growth. My tank's got a T5 light setup, and I've noticed better coloration since I upgraded from LED. Also, ensure the store's water params match yours to avoid ...

Observe their behavior with other fish. Aggression or extreme shyness can indicate stress or illness. My Discus are in a 60-gallon with a mix of tetras and corydoras, and they're chill with tankmates. The store's feeding routine matters too—ask what they're fed and how often. Sudden diet changes can ...