Hi CoralReefBerg,
you should try Le Meridien Maldives. They have a great Macro spot directly at the House Reef. You can check the dive center website about Macro World
A female Scuba Diver is observing a Hawksbill Turtle from a close distance at Le Meridien Maldives House Reef. Turtles encounters are almost guaranteed during Scuba Diving and Snorkeling at Le Meridien's House Reef.
sub-oceanic.com
The rest of the House Reef is also fantastic. They also offer non limit diving. Great deals for the resort are also available. If you are with Marriott can even stay on points. My favorite dive resort in the Maldives