How many aquarium systems can I connect with the LOOP app? Current USA - Support February 06, 2018 02:33 Updated Follow You can connect up to 6 complete aquarium systems using the LOOP app. Related articles How do I connect my DC pumps to the LOOP Bluetooth controller? LOOP App - Known Issues Can I use my old LED HUB on the Bluetooth Controller to add additional LED panels? Can I use the LOOP app on other devices like my computer or tablet? Troubleshooting Tips for LOOP App Connection Comments 0 comments Please sign in to leave a comment.