# ShrimpCalc-Mineral Water Guide — RO Tank GH KH TDS Dose

> RO Tank GH KH TDS Dose (iPhone/iPad app by JUHWAN PARK.)

- Source: https://appshunter.io/ios/app/shrimpcalc-mineral-water-guide/id6762030923 (this page in markdown: same URL + `.md`)
- Developer: [JUHWAN PARK](https://appshunter.io/developer/1790125318)
- Category: Lifestyle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 13.0 · 29 MB
- Languages: American English
- Released: 2026-04-13
- Data updated: 2026-06-12
- User reviews in markdown: https://appshunter.io/ios/app/shrimpcalc-mineral-water-guide/id6762030923/reviews.md

## What is ShrimpCalc?

Stop guessing how much remineralizer to add. ShrimpCalc tells you the exact grams (or ml) for your specific shrimp species, tank size, and brand — so every water change hits the right GH, KH, and TDS.

Freshwater shrimp die from parameter swings. Cherry Shrimp need GH 6-8. Crystal Reds need GH 4-6. Get the dosing wrong and your shrimp fail to molt. ShrimpCalc removes the guesswork.

HOW IT WORKS
1. Select your shrimp species (Neocaridina, Caridina, Taiwan Bee, Sulawesi, Amano, or Ghost) and your remineralizer brand.
2. Enter the volume of RO water you want to prepare.
3. Get the exact dose in grams or ml, plus expected GH, KH, and TDS with safety indicators.
It takes 15 seconds to set up. No account required.

REMINERALIZATION CALCULATOR
Supports Salty Shrimp Bee Mineral GH+, Shrimp Mineral GH/KH+, SL-Aqua Blue Wizard, and DIY custom solutions. Each brand has different concentrations — the app handles the math so you do not have to.

SPECIES-SPECIFIC TARGETS
Six species profiles with recommended GH, KH, TDS, pH, and temperature ranges. Your target parameters auto-fill based on your species selection.

MOLT RISK WARNINGS
If a water change would swing your parameters too far, the app warns you before you add water to the tank. Failed molts from sudden GH or TDS changes are the leading cause of shrimp death.

PRO FEATURES
Upgrade to Pro for deeper insights:
- Water change calculator with post-change parameter prediction
- TDS drift tracker for evaporation top-offs
- Tap water + RO blending ratio calculator
- Parameter trend graphs over time
- Multiple tank and species profiles
- Additional remineralizer brands
- Water change reminders
- CSV export

PRIVACY FIRST
All data is stored locally on your device. No account needed. No tracking. No data sent to any server.

ShrimpCalc is a reference calculator based on manufacturer specifications. It is not a substitute for testing your water with a proper test kit. Always verify parameters before adding water to your tank.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Pro — Full Access | $4.99 | per month |



## Version history (last 1 release)

### 1.0.0 — 2026-04-13

No release notes.

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All apps by JUHWAN PARK: https://appshunter.io/developer/1790125318

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-12.*