API test suites are usually the simplest test suites. I ended up getting the Red Sea KH test set and finishing with a point difference. The difference in calcium levels was 50 ppm (Red Sea below range). As long as you do water changes with quality salt, you don't have to worry too much about the parameters.
Jasonwell Magnetic Aquarium Fish Tank Glass Algae Cleaner - Floating Brush (L Size)
37 Review
Greenpro Micranthemum Monte Carlo: Live Large Pearl Grass Aquatic Plant In Tissue Culture Cup For Freshwater Fish Tanks And Aquariums
49 Review
Mini pump Xiaomi Mijia Electric Pump 1S, plastic, black
55 Review
𧲠Efficient Magnetic Fish Tank Cleaner: KEDSUM Floating Clean Brush with Handle Design
34 Review