Keeping Purple Spotted Gudgeons involves providing a spacious tank (100L+) with plenty of hiding spots (plants, rocks, wood), strong filtration, and a tight lid as they are expert jumpers, with suitable conditions around 20-27°C and moderate pH, feeding them live/frozen foods like worms or brine shrimp due to their carnivorous nature, and choosing tank mates carefully (larger, peaceful species) as they can be territorial and eat smaller fish.