Chihiros 2-Channels Dosing Pump for Aquarium Fertilizers

Chihiros 2-Channel Dosing Pump

The Chihiros 2-Channel Dosing Pump is a compact, app-controlled fertilizer doser built for smaller planted tanks or simpler dosing routines that don't need four separate channels. It automates the daily job of measuring and pouring liquid fertilizer — ideal for dosing something like APT 3 alongside a second product such as APT Fix or a liquid carbon supplement.

What Makes It Different

Both channels run completely independently, controlled entirely through the My Chihiros app — the unit itself has no physical buttons, keeping it compact enough to tuck away under a cabinet or behind a tank. Dosing volume is adjustable from 0.2 ml up to 999.9 ml per day in 0.1 ml increments, at a dosing rate of up to 50–60 ml per minute, covering everything from a light daily trace-element dose to heavier fertilization.

A built-in "Supplement Volume Monitor" tracks how much liquid remains in your containers based on your dosing schedule and warns you in the app roughly three days before a bottle runs dry, so you're not caught off guard mid-week.

Key Benefits

• Two fully independent channels, each dosing 0.2–999.9 ml daily in 0.1 ml increments
• Compact, buttonless design controlled entirely through the My Chihiros app
• Supplement Volume Monitor tracks remaining liquid and warns before it runs out
• Missed-dose compensation with CR2032 battery backup keeps schedules on track through power outages
• Smaller footprint and lower cost than the 4-channel version, for setups that don't need every channel
• Suitable for both freshwater planted tanks and simple reef dosing needs

Technical Specifications

• Dosing heads: 2, independently programmable
• Dosing range: 0.2–999.9 ml per day, 0.1 ml increments
• Dosing rate: Up to 50–60 ml/min
• Operating temperature: 5–45°C
• Relative humidity: 15–85% RH
• Power input: 100–240V 50/60Hz, DC 12V operating voltage
• Backup battery: CR2032 (not included), retains clock and settings during power loss
• Internal tubing: PharMed BPT tubing, rated for 1,000+ hours of operation
• Control: My Chihiros app (Bluetooth)

Who Should Use This

• Planted tank keepers dosing just one or two liquid products — for example, a fertilizer plus a liquid carbon supplement
• Smaller aquariums or simpler setups that don't need four separate dosing channels
• Anyone upgrading from manual dosing who wants consistent daily delivery without remembering
• Aquarists on a budget who want reliable automated dosing without paying for unused channels

If you're running three or four different liquid products — common in more demanding planted tanks or reef systems — the Chihiros 4-Channel Dosing Pump gives you the extra capacity.

Setup and Calibration

1. Mount the pump unit in a dry, accessible location near the aquarium
2. Connect silicone tubing from each channel to your dosing containers and to the tank
3. Download the My Chihiros app and connect to the pump via Bluetooth
4. Calibrate each channel with a measuring cylinder — the app walks you through dispensing a test volume and confirming the actual measured amount
5. Set your daily dose and schedule type (single dose, hourly, custom periods, or timer)

Expert Tip

If you're dosing both a fertilizer and a liquid carbon product on the two channels, schedule them a few hours apart rather than at the same time — this avoids any chance of the two products interacting in the water before they've had a chance to disperse.

Frequently Asked Questions

What's the difference between the 2-channel and 4-channel pumps?

The 2-channel model has two independent dosing heads instead of four, making it a more compact and affordable option for tanks that only need one or two liquids dosed automatically.

Does it include dosing bottles and tubing?

No — this listing is the pump unit only. Dosing bottles and tube sets are available separately.

Does it need a battery to work?

The pump operates on mains power without a battery, but a CR2032 battery (not included) is recommended so the clock and schedule are retained during power outages, with missed-dose compensation.

How precise is the dosing?

Dosing is adjustable in 0.1 ml increments, from 0.2 ml up to 999.9 ml per day per channel.

Do I need to calibrate before first use?

Yes — calibration with a measuring cylinder ensures the dosed volume matches what you set in the app, since pump output can vary slightly by unit and by liquid type.

Pairs Well With

• Chihiros Dosing Bottle 450 ml – bottles for your liquid fertilizers
• APT 3 – liquid fertilizer ideal for automated daily dosing
• APT FIX – algae treatment for scheduled spot-dosing routines