Reeflow: Reef Log & Dosing

Log alk, calcium and magnesium in seconds, get a dose with the formula shown, and check algae, pests or coral from a photo. Basic logging is free — forever.

Reeflow is a fast, reliable log for reef and saltwater aquariums — built around the parameters that actually keep coral alive, with the unit conversions done right.

TRACK WHAT MATTERS Log alkalinity, calcium, magnesium, nitrate, phosphate, salinity and temperature in seconds. Every reading is shown against its target band with a shape, a position and a word — never colour alone — so you can read your tank's health at a glance. dKH, ppm and meq/L convert instantly and correctly.

DOSING YOU CAN CHECK Reeflow's dosing calculator gives you an amount to raise alkalinity, calcium or magnesium — and shows the formula, your tank volume and the daily safe change limit right beside it. It is a calculation with its sources visible, not a command. You stay in control of what goes in the water.

DIAGNOSE FROM A PHOTO Point your camera at algae, a suspected pest or a struggling coral and get the most likely identifications with practical next steps. When the photo is not clear enough, Reeflow says so instead of guessing.

FREE — AND FAIR Basic logging is free, forever. Reeflow Pro adds multiple tanks, camera diagnosis, the dosing engine and long-term trends.

Reeflow does not make medical or veterinary claims. Dosing outputs are calculations and ranges to inform your own decisions.

REEFLOW PRO SUBSCRIPTION Reeflow Pro is available as an auto-renewable subscription: $4.99 per month or $34.99 per year, each starting with a 7-day free trial. Payment is charged to your Apple ID at confirmation of purchase. The subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period. Manage or cancel it in your Apple ID settings after purchase.

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