Chihiros Dosing Pump System - 4-Channel Automatic Aquarium Doser with Smart App Operation Review (2026)

Who this doser is for

The Chihiros Dosing Pump System is a compact, four-channel automatic fertilizer doser built for planted tank owners who want to move off manual syringe or capful dosing and onto a scheduled, app-controlled routine. It fits hobbyists running a multi-part fertilizer regimen, such as separate nitrogen, phosphate, potassium and trace bottles, since each of the four channels can be programmed independently. It is a good match for anyone who already checks a phone app daily for other tank equipment and wants one more device folded into that habit, and less of a fit for someone who prefers physical buttons and dials over a smartphone interface.

Key specs explained in plain English

The unit measures about 17.7 by 5.4 by 4.2 centimeters, roughly 7 by 2.2 by 1.7 inches, and doses are adjustable from 0.2 to 999.9 mL in 0.1 mL increments at up to 60 mL per minute. There are no physical buttons on the pump body since it is controlled entirely through the My Chihiros app, which keeps the unit compact compared with dial-based dosers. The internal tubing is PharMed-brand tubing rated for roughly 1,000 hours before replacement is needed. The app supports several scheduling styles, including a single daily dose, an hourly dose split into 24 equal portions, custom periods with up to four intervals, or a full timer schedule with up to 24 individually timed and sized doses per channel.

Setting it up and living with it

Getting started means pairing the pump with the My Chihiros app, running the initial calibration for each channel so the pump knows how much liquid it actually moves per second, and building out a dosing schedule for each of the four bottles. The app automatically staggers channels by 30 seconds between doses so different fertilizers do not mix or react inside the tank at the same moment, and a built-in battery, sold separately, retains programmed settings through a power outage and can catch up on a missed dose afterward. The app also tracks roughly how many days of dosing remain in each container based on the current schedule and sends a notification a few days before a bottle runs dry, which helps avoid an unnoticed gap in fertilizing.

Honest trade-offs and how it compares

The upfront cost is meaningfully higher than simply measuring out fertilizer with a syringe or capful by hand, and the calibration and app setup process takes real time to get right the first time, particularly for someone new to automated dosing. Against the Kamoer F4 Pro WiFi Doser, which offers similar four-channel automation with WiFi rather than the Chihiros app ecosystem, the choice often comes down to which brand's other equipment, lighting or CO2 gear, you already run, since staying in one ecosystem can simplify troubleshooting. Compared with a basic single or dual channel doser, the four independent channels here are worth the extra cost mainly for hobbyists running a full multi-part fertilizer line rather than just one or two products.

Verdict and who should pick something else

This doser earns its place for planted tank keepers who want to fully automate a multi-part fertilizer routine and are comfortable spending time on app-based calibration, which supports our score of 8.6 out of 10. It rewards owners who already keep a regular tank maintenance habit, since the payoff is consistent, unattended dosing once the schedule is dialed in correctly across all four channels. Consider a simpler manual dosing routine or a single-channel doser instead if you only dose one or two products, want physical controls rather than an app, or are not ready to invest the setup time that a four-channel automated system requires to run reliably. Anyone already invested in another dosing ecosystem should also weigh compatibility before switching brands.

Frequently asked questions