diff --git a/core/src/main/java/info/nightscout/androidaps/utils/ui/BasalProfileGraph.kt b/core/src/main/java/info/nightscout/androidaps/utils/ui/BasalProfileGraph.kt
index c31de87275..79ed829b0f 100644
--- a/core/src/main/java/info/nightscout/androidaps/utils/ui/BasalProfileGraph.kt
+++ b/core/src/main/java/info/nightscout/androidaps/utils/ui/BasalProfileGraph.kt
@@ -10,8 +10,8 @@ import info.nightscout.androidaps.core.R
 import info.nightscout.androidaps.interfaces.Profile
 import info.nightscout.androidaps.utils.Round
 import java.text.NumberFormat
-import java.util.ArrayList
 import kotlin.math.max
+import kotlin.math.min
 
 class BasalProfileGraph : GraphView {
 
@@ -22,8 +22,9 @@ class BasalProfileGraph : GraphView {
         removeAllSeries()
         val basalArray: MutableList<DataPoint> = ArrayList()
         for (hour in 0..23) {
-            basalArray.add(DataPoint(hour.toDouble(), profile.getBasalTimeFromMidnight(hour * 60 * 60)))
-            basalArray.add(DataPoint((hour + 1).toDouble(), profile.getBasalTimeFromMidnight(hour * 60 * 60)))
+            val basal = profile.getBasalTimeFromMidnight(hour * 60 * 60)
+            basalArray.add(DataPoint(hour.toDouble(), basal))
+            basalArray.add(DataPoint((hour + 1).toDouble(), basal))
         }
         val basalDataPoints: Array<DataPoint> = Array(basalArray.size) { i -> basalArray[i] }
         val basalSeries: LineGraphSeries<DataPoint> = LineGraphSeries(basalDataPoints)
@@ -41,7 +42,7 @@ class BasalProfileGraph : GraphView {
 
         val nf: NumberFormat = NumberFormat.getInstance()
         nf.maximumFractionDigits = 1
-        gridLabelRenderer.setLabelFormatter(DefaultLabelFormatter(nf, nf))
+        gridLabelRenderer.labelFormatter = DefaultLabelFormatter(nf, nf)
     }
 
     fun show(profile1: Profile, profile2: Profile) {
@@ -49,9 +50,14 @@ class BasalProfileGraph : GraphView {
 
         // profile 1
         val basalArray1: MutableList<DataPoint> = ArrayList()
+        var minBasal = 1000.0
+        var maxBasal = 0.0
         for (hour in 0..23) {
-            basalArray1.add(DataPoint(hour.toDouble(), profile1.getBasalTimeFromMidnight(hour * 60 * 60)))
-            basalArray1.add(DataPoint((hour + 1).toDouble(), profile1.getBasalTimeFromMidnight(hour * 60 * 60)))
+            val basal = profile1.getBasalTimeFromMidnight(hour * 60 * 60)
+            minBasal = min(minBasal, basal)
+            maxBasal = max(maxBasal, basal)
+            basalArray1.add(DataPoint(hour.toDouble(), basal))
+            basalArray1.add(DataPoint((hour + 1).toDouble(), basal))
         }
         val basalSeries1: LineGraphSeries<DataPoint> = LineGraphSeries(Array(basalArray1.size) { i -> basalArray1[i] })
         addSeries(basalSeries1)
@@ -61,8 +67,11 @@ class BasalProfileGraph : GraphView {
         // profile 2
         val basalArray2: MutableList<DataPoint> = ArrayList()
         for (hour in 0..23) {
-            basalArray2.add(DataPoint(hour.toDouble(), profile2.getBasalTimeFromMidnight(hour * 60 * 60)))
-            basalArray2.add(DataPoint((hour + 1).toDouble(), profile2.getBasalTimeFromMidnight(hour * 60 * 60)))
+            val basal = profile2.getBasalTimeFromMidnight(hour * 60 * 60)
+            minBasal = min(minBasal, basal)
+            maxBasal = max(maxBasal, basal)
+            basalArray2.add(DataPoint(hour.toDouble(), basal))
+            basalArray2.add(DataPoint((hour + 1).toDouble(), basal))
         }
         val basalSeries2: LineGraphSeries<DataPoint> = LineGraphSeries(Array(basalArray2.size) { i -> basalArray2[i] })
         addSeries(basalSeries2)
@@ -75,8 +84,12 @@ class BasalProfileGraph : GraphView {
         viewport.setMinX(0.0)
         viewport.setMaxX(24.0)
         viewport.isYAxisBoundsManual = true
-        viewport.setMinY(0.0)
-        viewport.setMaxY(Round.ceilTo(max(profile1.getMaxDailyBasal(), profile2.getMaxDailyBasal()) * 1.1, 0.5))
+        viewport.setMinY(Round.floorTo(minBasal / 1.1, 0.5))
+        viewport.setMaxY(Round.ceilTo(maxBasal * 1.1, 0.5))
         gridLabelRenderer.numHorizontalLabels = 13
+
+        val nf: NumberFormat = NumberFormat.getInstance()
+        nf.maximumFractionDigits = 1
+        gridLabelRenderer.labelFormatter = DefaultLabelFormatter(nf, nf)
     }
 }
\ No newline at end of file
diff --git a/core/src/main/java/info/nightscout/androidaps/utils/ui/IcProfileGraph.kt b/core/src/main/java/info/nightscout/androidaps/utils/ui/IcProfileGraph.kt
index 74d6b08ce8..02dc50a0f4 100644
--- a/core/src/main/java/info/nightscout/androidaps/utils/ui/IcProfileGraph.kt
+++ b/core/src/main/java/info/nightscout/androidaps/utils/ui/IcProfileGraph.kt
@@ -10,8 +10,8 @@ import info.nightscout.androidaps.core.R
 import info.nightscout.androidaps.interfaces.Profile
 import info.nightscout.androidaps.utils.Round
 import java.text.NumberFormat
-import java.util.*
 import kotlin.math.max
+import kotlin.math.min
 
 class IcProfileGraph : GraphView {
 
@@ -44,17 +44,19 @@ class IcProfileGraph : GraphView {
 
         val nf: NumberFormat = NumberFormat.getInstance()
         nf.maximumFractionDigits = 1
-        gridLabelRenderer.setLabelFormatter(DefaultLabelFormatter(nf, nf))
+        gridLabelRenderer.labelFormatter = DefaultLabelFormatter(nf, nf)
     }
 
     fun show(profile1: Profile, profile2: Profile) {
         removeAllSeries()
 
+        var minIc = 1000.0
         var maxIc = 0.0
         // ic 1
         val icArray1: MutableList<DataPoint> = ArrayList()
         for (hour in 0..23) {
             val ic = profile1.getIcTimeFromMidnight(hour * 60 * 60)
+            minIc = min(minIc, ic)
             maxIc = max(maxIc, ic)
             icArray1.add(DataPoint(hour.toDouble(), ic))
             icArray1.add(DataPoint((hour + 1).toDouble(), ic))
@@ -68,6 +70,7 @@ class IcProfileGraph : GraphView {
         val icArray2: MutableList<DataPoint> = ArrayList()
         for (hour in 0..23) {
             val ic = profile2.getIcTimeFromMidnight(hour * 60 * 60)
+            minIc = min(minIc, ic)
             maxIc = max(maxIc, ic)
             icArray2.add(DataPoint(hour.toDouble(), ic))
             icArray2.add(DataPoint((hour + 1).toDouble(), ic))
@@ -82,8 +85,12 @@ class IcProfileGraph : GraphView {
         viewport.setMinX(0.0)
         viewport.setMaxX(24.0)
         viewport.isYAxisBoundsManual = true
-        viewport.setMinY(0.0)
+        viewport.setMinY(Round.floorTo(minIc / 1.1, 0.5))
         viewport.setMaxY(Round.ceilTo(maxIc * 1.1, 0.5))
         gridLabelRenderer.numHorizontalLabels = 13
+
+        val nf: NumberFormat = NumberFormat.getInstance()
+        nf.maximumFractionDigits = 1
+        gridLabelRenderer.labelFormatter = DefaultLabelFormatter(nf, nf)
     }
 }
\ No newline at end of file
diff --git a/core/src/main/java/info/nightscout/androidaps/utils/ui/IsfProfileGraph.kt b/core/src/main/java/info/nightscout/androidaps/utils/ui/IsfProfileGraph.kt
index 35d9d72e11..d449cdf15a 100644
--- a/core/src/main/java/info/nightscout/androidaps/utils/ui/IsfProfileGraph.kt
+++ b/core/src/main/java/info/nightscout/androidaps/utils/ui/IsfProfileGraph.kt
@@ -11,6 +11,7 @@ import info.nightscout.androidaps.interfaces.Profile
 import info.nightscout.androidaps.utils.Round
 import java.text.NumberFormat
 import kotlin.math.max
+import kotlin.math.min
 
 class IsfProfileGraph : GraphView {
 
@@ -45,18 +46,20 @@ class IsfProfileGraph : GraphView {
 
         val nf: NumberFormat = NumberFormat.getInstance()
         nf.maximumFractionDigits = 1
-        gridLabelRenderer.setLabelFormatter(DefaultLabelFormatter(nf, nf))
+        gridLabelRenderer.labelFormatter = DefaultLabelFormatter(nf, nf)
     }
 
     fun show(profile1: Profile, profile2: Profile) {
         removeAllSeries()
 
+        var minIsf = 1000.0
         var maxIsf = 0.0
         val units = profile1.units
         // isf 1
         val isfArray1: MutableList<DataPoint> = ArrayList()
         for (hour in 0..23) {
             val isf = Profile.fromMgdlToUnits(profile1.getIsfMgdlTimeFromMidnight(hour * 60 * 60), units)
+            minIsf = min(minIsf, isf)
             maxIsf = max(maxIsf, isf)
             isfArray1.add(DataPoint(hour.toDouble(), isf))
             isfArray1.add(DataPoint((hour + 1).toDouble(), isf))
@@ -70,6 +73,7 @@ class IsfProfileGraph : GraphView {
         val isfArray2: MutableList<DataPoint> = ArrayList()
         for (hour in 0..23) {
             val isf = Profile.fromMgdlToUnits(profile2.getIsfMgdlTimeFromMidnight(hour * 60 * 60), units)
+            minIsf = min(minIsf, isf)
             maxIsf = max(maxIsf, isf)
             isfArray2.add(DataPoint(hour.toDouble(), isf))
             isfArray2.add(DataPoint((hour + 1).toDouble(), isf))
@@ -84,8 +88,12 @@ class IsfProfileGraph : GraphView {
         viewport.setMinX(0.0)
         viewport.setMaxX(24.0)
         viewport.isYAxisBoundsManual = true
-        viewport.setMinY(0.0)
+        viewport.setMinY(Round.floorTo(minIsf / 1.1, 0.5))
         viewport.setMaxY(Round.ceilTo(maxIsf * 1.1, 0.5))
         gridLabelRenderer.numHorizontalLabels = 13
+
+        val nf: NumberFormat = NumberFormat.getInstance()
+        nf.maximumFractionDigits = 1
+        gridLabelRenderer.labelFormatter = DefaultLabelFormatter(nf, nf)
     }
 }
\ No newline at end of file
diff --git a/core/src/main/java/info/nightscout/androidaps/utils/ui/TargetBgProfileGraph.kt b/core/src/main/java/info/nightscout/androidaps/utils/ui/TargetBgProfileGraph.kt
index 3f7325a04b..7ff5dba32c 100644
--- a/core/src/main/java/info/nightscout/androidaps/utils/ui/TargetBgProfileGraph.kt
+++ b/core/src/main/java/info/nightscout/androidaps/utils/ui/TargetBgProfileGraph.kt
@@ -7,12 +7,12 @@ import com.jjoe64.graphview.GraphView
 import info.nightscout.androidaps.core.R
 import info.nightscout.androidaps.interfaces.GlucoseUnit
 import info.nightscout.androidaps.interfaces.Profile
-import info.nightscout.androidaps.utils.Round
 import info.nightscout.androidaps.plugins.general.overview.graphExtensions.AreaGraphSeries
 import info.nightscout.androidaps.plugins.general.overview.graphExtensions.DoubleDataPoint
+import info.nightscout.androidaps.utils.Round
 import java.text.NumberFormat
-import java.util.ArrayList
 import kotlin.math.max
+import kotlin.math.min
 
 class TargetBgProfileGraph : GraphView {
 
@@ -48,18 +48,20 @@ class TargetBgProfileGraph : GraphView {
 
         val nf: NumberFormat = NumberFormat.getInstance()
         nf.maximumFractionDigits = if (units == GlucoseUnit.MMOL) 1 else 0
-        gridLabelRenderer.setLabelFormatter(DefaultLabelFormatter(nf, nf))
+        gridLabelRenderer.labelFormatter = DefaultLabelFormatter(nf, nf)
     }
 
     fun show(profile1: Profile, profile2: Profile) {
 
         removeAllSeries()
         val targetArray1: MutableList<DoubleDataPoint> = ArrayList()
+        var minValue = 1000.0
         var maxValue = 0.0
         val units = profile1.units
         for (hour in 0..23) {
             val valueLow = Profile.fromMgdlToUnits(profile1.getTargetLowMgdlTimeFromMidnight(hour * 60 * 60), units)
             val valueHigh = Profile.fromMgdlToUnits(profile1.getTargetHighMgdlTimeFromMidnight(hour * 60 * 60), units)
+            minValue = min(minValue, valueLow)
             maxValue = max(maxValue, valueHigh)
             targetArray1.add(DoubleDataPoint(hour.toDouble(), valueLow, valueHigh))
             targetArray1.add(DoubleDataPoint((hour + 1).toDouble(), valueLow, valueHigh))
@@ -73,6 +75,7 @@ class TargetBgProfileGraph : GraphView {
         for (hour in 0..23) {
             val valueLow = Profile.fromMgdlToUnits(profile2.getTargetLowMgdlTimeFromMidnight(hour * 60 * 60), units)
             val valueHigh = Profile.fromMgdlToUnits(profile2.getTargetHighMgdlTimeFromMidnight(hour * 60 * 60), units)
+            minValue = min(minValue, valueLow)
             maxValue = max(maxValue, valueHigh)
             targetArray2.add(DoubleDataPoint(hour.toDouble(), valueLow, valueHigh))
             targetArray2.add(DoubleDataPoint((hour + 1).toDouble(), valueLow, valueHigh))
@@ -87,13 +90,13 @@ class TargetBgProfileGraph : GraphView {
         viewport.setMinX(0.0)
         viewport.setMaxX(24.0)
         viewport.isYAxisBoundsManual = true
-        viewport.setMinY(0.0)
+        viewport.setMinY(Round.floorTo(minValue / 1.1, 0.5))
         viewport.setMaxY(Round.ceilTo(maxValue * 1.1, 0.5))
         gridLabelRenderer.numHorizontalLabels = 13
         gridLabelRenderer.verticalLabelsColor = targetSeries1.color
 
         val nf: NumberFormat = NumberFormat.getInstance()
         nf.maximumFractionDigits = if (units == GlucoseUnit.MMOL) 1 else 0
-        gridLabelRenderer.setLabelFormatter(DefaultLabelFormatter(nf, nf))
+        gridLabelRenderer.labelFormatter = DefaultLabelFormatter(nf, nf)
     }
 }