Controllers and Monitoring checked by reef math.
A controller is useful when it reduces a real risk in the build, not when it replaces basic husbandry.

Controllers
A3 Apex Aquarium Controller System
Neptune Systems · $799

Controllers
A3 Apex Jr Controller System
Neptune Systems · $240

Controllers
Apex Energy Bar 8 EB832
Neptune Systems · $360

Controllers
Apex Trident Auto Water Tester (Ca/Alk/Mg)
Neptune Systems · $899

Controllers
Inkbird ITC-308 WiFi Temperature Controller
Inkbird · $55

Controllers
Inkbird ITC-308S Dual Stage Temperature Controller
Inkbird · $39

Controllers
American Marine Pinpoint pH Monitor
American Marine · $129

Controllers
American Marine Pinpoint Salinity Monitor
American Marine · $179

Controllers
Apex 1Link Module
Neptune Systems · $200

Controllers
Apex PM1 pH ORP Probe Module
Neptune Systems · $109

Controllers
Apex System with Trident Bundle
Neptune Systems · $1,499

Controllers
GHL ProfiLux 4 Mega Starter Set Black
GHL · $1,499

Controllers
GHL ProfiLux 4 Mega Starter Set White
GHL · $1,499

Controllers
GHL ProfiLux 4e Starter Set Black
GHL · $799

Controllers
GHL ProfiLux 4e Starter Set White
GHL · $799

Controllers
Hydros Control X10 Premium Controller
CoralVue · $799

Controllers
Hydros Control X3 PRO Pack
CoralVue · $549

Controllers
Hydros Control X4 PRO Pack
CoralVue · $649

Controllers
Hydros WaveEngine LE Dual Pump Controller
CoralVue · $169

Controllers
American Marine Pinpoint pH Controller
American Marine · $199

Controllers
Apex Classic Controller with Lab-Grade pH Probe
Neptune Systems · $399

Controllers
Apex PM2 Salinity Module
Neptune Systems · $179