Focustronic Alkatronic Alkalinity Controller fit check
Focustronic Alkatronic Alkalinity Controller is an automated alkalinity controller from Focustronic. Listed features: Standalone automated KH tester and controller via pH titration; Range 4.48-15.40 dKH, standard deviation +/-0.05 dKH; Tests every 1-12 hours and auto-doses carbonates. ReefCrafter's catalog fit range is 20+ gallon systems.
Focustronic Alkatronic Alkalinity Controller: best for systems 20 gallons and up. Specs, compatibility math, sizing risks, and alternatives before you buy.
Who it is for
Good fit for
- ✓ 20+ gallon systems, per the catalog fit range.
- ✓ Keepers who want alerts on a specific risk such as temperature, pH, salinity, or alkalinity.
Not a fit for
- ✕ Tanks under about 20 gallons; it is sized above them.
- ✕ A first purchase before the heater, ATO, and maintenance routine are stable.
Listed features
- Standalone automated KH tester and controller via pH titration
- Range 4.48-15.40 dKH, standard deviation +/-0.05 dKH
- Tests every 1-12 hours and auto-doses carbonates
- WiFi + Bluetooth with iOS/Android app; BNC for Apex
- Hardware-ready for Dosetronic dosing station
Specs checked against bulkreefsupply.com.
Compatibility math
Build role
Example: Focustronic Alkatronic Alkalinity Controller belongs in the plan only if it solves a real stability or maintenance job.
ReefCrafter keeps optional upgrades behind core stability requirements.
Risk notes
- Automation can add complexity if the basic heater, ATO, and maintenance plan are not already stable.
Professional fit context
- Check probe support, controllable outlets, alerting, redundancy, and setup complexity.
- Focustronic Alkatronic Alkalinity Controller best for systems 20 gallons and up; confirm that range against the final display volume, sump volume, and livestock plan.
Alternatives to compare
- Inkbird ITC-308 WiFi Temperature Controller
Balanced-tier alternative in the same category.
- Inkbird ITC-308S Dual Stage Temperature Controller
Budget-tier alternative in the same category.
- Reef Factory KH Keeper Plus
Catalog fit range 20+ gallon systems (premium tier).
Full spec snapshot
- Category
- Controllers
- Build tier
- Premium
- Estimated price
- $990
- Tank fit range
- best for systems 20 gallons and up
- Format
- Automated Alkalinity Controller
Related reading
Questions
What tank size is the Focustronic Alkatronic Alkalinity Controller for?
ReefCrafter's catalog fit range for it is 20+ gallon systems. Confirm that against your final display volume, sump volume, and livestock plan rather than the box label alone.
What should I compare the Focustronic Alkatronic Alkalinity Controller against?
Inkbird ITC-308 WiFi Temperature Controller (Balanced-tier alternative in the same category); Inkbird ITC-308S Dual Stage Temperature Controller (Budget-tier alternative in the same category); Reef Factory KH Keeper Plus (Catalog fit range 20+ gallon systems (premium tier)).
What range and accuracy does the Focustronic Alkatronic Alkalinity Controller list?
The retailer listing gives: Range 4.48-15.40 dKH, standard deviation +/-0.05 dKH.
