diff --git a/src/components/Availability/AvailabilitiesTable.tsx b/src/components/Availability/AvailabilitiesTable.tsx
index ba7baf0..f00fdb2 100644
--- a/src/components/Availability/AvailabilitiesTable.tsx
+++ b/src/components/Availability/AvailabilitiesTable.tsx
@@ -49,8 +49,11 @@ export function AvailabilitiesTable({ availabilities, space }: Props) {
   const onSortByPrice = (state: TabSortState) =>
     setSortFn(() => AvailabilityUtils.sortByPrice(state));
 
-  const onSortByCollateral = (state: TabSortState) =>
-    setSortFn(() => AvailabilityUtils.sortByCollateral(state));
+  const onSortByRemainingCollateral = (state: TabSortState) =>
+    setSortFn(() => AvailabilityUtils.sortByRemainingCollateral(state));
+
+  const onSortByTotalCollateral = (state: TabSortState) =>
+    setSortFn(() => AvailabilityUtils.sortByTotalCollateral(state));
 
   const headers = [
     [""],
@@ -58,7 +61,8 @@ export function AvailabilitiesTable({ availabilities, space }: Props) {
     ["total size", onSortBySize],
     ["duration", onSortByDuration],
     ["min price per byte", onSortByPrice],
-    ["remaining collateral", onSortByCollateral],
+    ["remaining collateral", onSortByRemainingCollateral],
+    ["total collateral", onSortByTotalCollateral],
     ["actions"],
   ] satisfies [string, ((state: TabSortState) => void)?][];
 
@@ -90,6 +94,7 @@ export function AvailabilitiesTable({ availabilities, space }: Props) {
             <Cell>{Times.pretty(a.duration)}</Cell>,
             <Cell>{a.minPricePerBytePerSecond.toString()}</Cell>,
             <Cell>{a.totalRemainingCollateral.toString()}</Cell>,
+            <Cell>{a.totalCollateral.toString()}</Cell>,
             <AvailabilityActionsCell availability={a} />,
           ]}></Row>
 
diff --git a/src/components/Availability/AvailabilityEdit.tsx b/src/components/Availability/AvailabilityEdit.tsx
index 397f898..5b7590a 100644
--- a/src/components/Availability/AvailabilityEdit.tsx
+++ b/src/components/Availability/AvailabilityEdit.tsx
@@ -30,7 +30,7 @@ const CONFIRM_STATE = 2;
 const defaultAvailabilityData: AvailabilityState = {
   totalSize: 0.5,
   duration: 1,
-  minPricePerBytePerSecond: 0,
+  minPricePerBytePerSecond: 1,
   totalCollateral: 0,
   totalSizeUnit: "gb",
   durationUnit: "days",
diff --git a/src/components/Availability/AvailabilityForm.tsx b/src/components/Availability/AvailabilityForm.tsx
index bfdf399..44406eb 100644
--- a/src/components/Availability/AvailabilityForm.tsx
+++ b/src/components/Availability/AvailabilityForm.tsx
@@ -11,6 +11,7 @@ import NodesIcon from "../../assets/icons/nodes.svg?react";
 import InfoIcon from "../../assets/icons/info.svg?react";
 import { attributes } from "../../utils/attributes";
 import { AvailabilityUtils } from "./availability.utils";
+import { GB } from "../../utils/constants";
 
 export function AvailabilityForm({
   dispatch,
@@ -144,12 +145,13 @@ export function AvailabilityForm({
             max={available.toFixed(2)}
             onChange={onAvailablityChange}
             onGroupChange={onTotalSizeUnitChange}
-            value={availability.totalSize.toString()}
+            value={availability.totalSize.toFixed(2)}
             min={"0"}
             group={[
               ["gb", "GB"],
               // ["tb", "TB"],
             ]}
+            step="0.1"
             groupValue={availability.totalSizeUnit}
             extra={<a onClick={onMaxSize}>Use max size</a>}
           />
@@ -208,7 +210,10 @@ export function AvailabilityForm({
             label="Total collateral"
             min={0}
             onChange={onInputChange}
-            value={availability.totalCollateral.toString()}
+            value={(
+              availability.totalCollateral ||
+              Math.round(availability.totalSize * GB)
+            ).toString()}
           />
           <Tooltip
             message={
diff --git a/src/components/Availability/availability.utils.test.ts b/src/components/Availability/availability.utils.test.ts
index e104bfa..811e801 100644
--- a/src/components/Availability/availability.utils.test.ts
+++ b/src/components/Availability/availability.utils.test.ts
@@ -179,13 +179,13 @@ describe("files", () => {
 
     const descSorted = items
       .slice()
-      .sort(AvailabilityUtils.sortByCollateral("desc"));
+      .sort(AvailabilityUtils.sortByRemainingCollateral("desc"));
 
     assert.deepEqual(descSorted, [b, a]);
 
     const ascSorted = items
       .slice()
-      .sort(AvailabilityUtils.sortByCollateral("asc"));
+      .sort(AvailabilityUtils.sortByRemainingCollateral("asc"));
 
     assert.deepEqual(ascSorted, [a, b]);
   });
diff --git a/src/components/Availability/availability.utils.ts b/src/components/Availability/availability.utils.ts
index 88e7d86..c895e12 100644
--- a/src/components/Availability/availability.utils.ts
+++ b/src/components/Availability/availability.utils.ts
@@ -25,12 +25,18 @@ export const AvailabilityUtils = {
       state === "desc"
         ? b.minPricePerBytePerSecond - a.minPricePerBytePerSecond
         : a.minPricePerBytePerSecond - b.minPricePerBytePerSecond,
-  sortByCollateral:
+  sortByRemainingCollateral:
     (state: TabSortState) =>
     (a: AvailabilityWithSlots, b: AvailabilityWithSlots) =>
       state === "desc"
         ? b.totalRemainingCollateral - a.totalRemainingCollateral
         : a.totalRemainingCollateral - b.totalRemainingCollateral,
+  sortByTotalCollateral:
+    (state: TabSortState) =>
+    (a: AvailabilityWithSlots, b: AvailabilityWithSlots) =>
+      state === "desc"
+        ? b.totalCollateral - a.totalCollateral
+        : a.totalCollateral - b.totalCollateral,
   toUnit(bytes: number, unit: "gb" | "tb") {
     return bytes / this.unitValue(unit || "gb");
   },
diff --git a/src/components/CardNumbers/CardNumbers.tsx b/src/components/CardNumbers/CardNumbers.tsx
index 4b2896e..bf0b5d5 100644
--- a/src/components/CardNumbers/CardNumbers.tsx
+++ b/src/components/CardNumbers/CardNumbers.tsx
@@ -52,6 +52,7 @@ export function CardNumbers({
         value={value}
         type="number"
         isInvalid={!!error}
+        min={0}
         onChange={onInternalChange}></Input>
 
       <Tooltip message={error || helper}>
diff --git a/src/components/StorageRequestSetup/StorageRequestCreate.tsx b/src/components/StorageRequestSetup/StorageRequestCreate.tsx
index f2a674b..4c13b1e 100644
--- a/src/components/StorageRequestSetup/StorageRequestCreate.tsx
+++ b/src/components/StorageRequestSetup/StorageRequestCreate.tsx
@@ -27,8 +27,8 @@ const defaultStorageRequest: StorageRequest = {
   tolerance: 1,
   proofProbability: 1,
   nodes: 3,
-  reward: 10,
-  collateral: 10,
+  reward: 1,
+  collateral: 1,
   expiration: 5,
 };
 
diff --git a/src/components/StorageRequestSetup/StorageRequestReview.tsx b/src/components/StorageRequestSetup/StorageRequestReview.tsx
index c04b8c6..a84b86f 100644
--- a/src/components/StorageRequestSetup/StorageRequestReview.tsx
+++ b/src/components/StorageRequestSetup/StorageRequestReview.tsx
@@ -288,7 +288,7 @@ export function StorageRequestReview({
             value={storageRequest.collateral.toString()}
             onChange={onCollateralChange}
             onValidation={isInvalidNumber}
-            title="Penality tokens"></CardNumbers>
+            title="Penality tokens per byte"></CardNumbers>
           <CardNumbers
             helper="The maximum amount of tokens paid per second per byte to hosts the client is willing to pay."
             id="reward"