Living-wallpaper support varies by device. Some phones display animated wallpapers only on the lock screen. Static versions are included for universal compatibility.
A steadier reef routine starts here
The Reef Keeper Starter Pack brings your essential reef records, reference tools, and weekly routines together in one practical download.
Built around The Drop Off’s simple Measure → Compare → Adjust Slowly approach, it helps you recognize meaningful trends, make more thoughtful changes, and spend less time reacting to every isolated number.
Free for The Drop Off subscribers. No frantic parameter chasing required.
Practical tools for the tank. Prism Reef for your screen.
Fillable Reef Keeper guide
Create a profile and baseline for your aquarium, record livestock and equipment details, and keep the information you rely on in one reusable digital PDF.
Water-parameter guide and eight-week tracker
Compare your results over time with useful starting ranges, suggested testing frequency, and space to record developing trends.
Weekly maintenance checklist
Build a repeatable routine covering livestock observations, equipment checks, water testing, cleaning, water changes, dosing, and next steps.
Fish compatibility quick screen
Use five practical checks to make a more informed first-pass comparison before bringing home a new marine fish.
Printable aquarium logbook
Record test results, livestock observations, feeding, dosing, maintenance, and the next actions for your reef.
Three Prism Reef wallpapers, including the new Afterglow
The updated Starter Pack includes two static phone wallpapers and the new Afterglow living wallpaper—a luminous deep-blue reef scene with gently shifting coral light.
Use the static wallpapers on your home screen or lock screen, and install Afterglow anywhere your phone supports animated or video wallpaper.
Living-wallpaper support varies by device. Some phones display animation only on the lock screen. Static versions are included for universal compatibility.
Measure. Compare. Adjust slowly.
1. Measure
Test under consistent conditions and record the result before changing anything.
2. Compare
Look for movement across several readings instead of reacting to one isolated result.
3. Adjust slowly
Confirm the result, calculate carefully, and avoid large corrections whenever possible.
Stability usually matters more than reaching the exact center of a range. Reef tanks reward patience—even when they occasionally choose chaos before breakfast.
Is this Starter Pack for you?
This pack is especially useful if you:
Are setting up or learning to manage a reef aquarium
Want a simpler and more repeatable maintenance routine
Need one place to record parameters and observations
Want to make decisions based on trends instead of single tests
Would like attractive reef artwork for your phone
Want a practical reference near your aquarium or test kits
This pack contains general educational material for typical established mixed reefs. Always research the specific requirements of your livestock and aquarium system before making changes.
Spend less time wondering what you forgot
Download the pack, complete the fillable guide, print or duplicate the pages you use most, and begin recording your reef as it really is. Better notes lead to better comparisons—and usually fewer mysterious aquarium plot twists.
Your download includes the fillable Reef Keeper guide, printable refills, two static phone wallpapers, the Afterglow living wallpaper, and complete setup instructions.
About The Drop Off
The Drop Off explores modern reef keeping through practical guidance, remarkable marine life, and art inspired by the world below the surface.
Created by Ken, an experienced aquarist who believes a good reef routine should be informed, consistent, and calm enough to leave time for actually watching the fish.