diff --git a/Readme.md b/Readme.md
index 1b3827f..a2dc258 100644
--- a/Readme.md
+++ b/Readme.md
@@ -14,4 +14,14 @@ This is a Gadgetbridge MQTT bridge for TrueNAS Scale, which allows you to connec
 ## Editing Sensors
 
 - add new mqtt sensor around here [main.py#L90](https://git.olli.info/Oliver/GadgetbridgeMqtt/src/branch/main/main.py#L90)
-- add new function for new sensor around here [main.py#L208](https://git.olli.info/Oliver/GadgetbridgeMqtt/src/branch/main/main.py#L208)
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+- add new function for new sensor around here [main.py#L208](https://git.olli.info/Oliver/GadgetbridgeMqtt/src/branch/main/main.py#L208)
+
+## Reduce Database Size
+
+1. Export ZIP in Gadgetbridge > Data Management
+2. Unzip, clear logs & other unneeded data.
+3. Locate `Gadgetbridge` in `database/` and `files/` and delete old heart pulse samples to reduce the size of the Gadgetbridge database:
+```bash
+sqlite3 Gadgetbridge.db "DELETE FROM HEART_PULSE_SAMPLE; VACUUM;"
+```
+4. Rezip and import back into Gadgetbridge
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