> ## Documentation Index
> Fetch the complete documentation index at: https://docs.nullark.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Fixed denominations

See Nullark's supported ETH amounts and how deposit templates turn one parent amount into one or two withdrawable children.

The current pool supports ten fixed ETH amounts:

| Small | Medium | Large |
| --- | --- | --- |
| `0.005` | `0.05` | `0.3` |
| `0.01` | `0.1` | `0.5` |
| `0.02` | `0.2` | `1` |
| `0.03` |  |  |

## Deposit templates

A deposit chooses one registered template:

```text
parent amount = child 0 + child 1
```

The parent and each nonzero child must be supported denominations. A standalone template uses one active child and one zero slot. A split template uses two active children.

| Parent | Child slots | Result |
| ---: | ---: | --- |
| `0.3 ETH` | `0.3 + 0` | One withdrawable child |
| `0.3 ETH` | `0.2 + 0.1` | Two separately withdrawable children |
| `0.3 ETH` | `0.25 + 0.05` | Rejected because `0.25` is unsupported |

## Withdrawal rule

A withdrawal spends one active child at its exact amount and creates no change output. If the bundle has a sibling, that sibling remains available for a later withdrawal.

The fee comes out of the selected child's gross amount. The denomination stays fixed.

Fixed values make note selection predictable. Deposit values, withdrawal values, fees, timing, and wallet behavior remain public.

Multi-deposit still uses separate parent deposits in a sequential queue. Read [Run a multi-deposit queue](/use/multi-deposit.md) before using it.