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Goldie
Pro200 L

Mountain stream biotope (200 L)

Cool water, strong flow, smooth rocks — an Asian stream at home.

Mountain stream biotope (200 L) — aquarium setup with fish, plants and equipment (200 L)

A unique build: 18–22 °C water without a heater, strong flow via powerheads, minimal plants (epiphytes only).

Hillstream loaches and fast danios are fish for strong currents. Cool, oxygen-rich flow is essential.

Dimensions
100×40×50 cm
Temperature
16–22°C
pH
7–8
gH
8–18 °dGH
Setup time
6 wks
Budget
≈ $520
Total fish
31
Test this setup in Simulator →

Fish (31)

Plants (8)

Invertebrates (8)

  • Amano Shrimp× 8

Setup Checklist

Essential gear and water prep needed before adding fish

0 of 8 ready
  • External canister filterEssential

    ≥ 1500 L/h + 2 powerheads

    Check options →
    ≈ $280
  • ThermometerCare

    Digital with >25 °C alert

    Check options →
    ≈ $20
  • Basic 6500K LED lightBase
    Check options →
    ≈ $90
  • White quartz sandBase

    Sand + river gravel + boulders

    Check options →
    ≈ $70
  • Dark film backgroundBase
    Check options →
    ≈ $18
  • Water conditioner (dechlorinator)Essential

    Seachem Prime or Tetra AquaSafe — instantly detoxifies chlorine, chloramine, and heavy metals

    Check options →
    ≈ $12
  • Liquid drop test kit (pH, NH₃/NH₄, NO₂, NO₃)Recommended

    API Freshwater Master Test Kit or liquid drop tests to monitor nitrogen cycle

    Check options →
    ≈ $25
  • Fish net & gravel vacuum siphonCare

    Soft fish net matched to fish size + gravel vacuum siphon for weekly 20–30% water changes

    Check options →
    ≈ $15

Decor

  • Natural rock (Seiryu / Dragon Stone)× 10

Tips & gotchas

  • In summer you may need a chiller / fans — 25 °C is already stress.
  • Minimum 10× volume/hour circulation — otherwise hillstream loaches suffer low oxygen.
  • Smooth river rocks mandatory — no sharp edges.
  • 30 % water change weekly, oxygenate the refill.