HelloReef 15-gallon setup path

Your First Saltwater Aquarium, Week by Week

Follow one clear six-week path from an empty aquarium to stable water, your first cleanup crew, beginner-friendly clownfish, and a thoughtful anemone-readiness decision.

Six useful weeksOne clear milestone at a time
15-gallon pathBuilt around the HelloReef kit
Readiness firstEvidence matters more than dates
Complete courseMore than 50 detailed videos with the kit

HelloReef Clownfish and Anemone Aquarium Kit and included equipment

The public guide explains the journey. The kit-included HelloReef course provides the complete step-by-step instruction.

Before you begin

Know what this guide is—and what it is not

This landing page shows the full beginner journey, the outcome of each week, and the evidence that tells you when to continue. Each weekly guide will be useful on its own, with practical preparation, readiness checks, and links to the right supporting resources.

It is not a substitute for the complete HelloReef course. When you purchase the HelloReef kit, you receive more than 50 detailed videos covering the exact equipment, demonstrations, and step-by-step process.

View the HelloReef kit at BRS
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The complete beginner path

Six weeks, six clear outcomes

Start at Week 1 and work in order. If a readiness check does not pass, stay with that week and correct the underlying issue before continuing.

Plan and assemble

Build the dry aquarium correctly

Choose a safe location, understand the main systems, inspect the kit, assemble the dry equipment, and create a stable, maintainable aquascape.

  • Location, support, access, and safer power routing
  • Equipment roles and unboxing checks
  • Stable rock, sand, flow clearance, and cleaning space
Ready for Week 2 when: the aquarium is safely supported and level, the rockwork is stable, the dry equipment is serviceable, and nothing essential is missing or damaged.

Open Week 1: Plan and assemble the dry aquarium

Water and equipment

Turn it into a running saltwater system

Select suitable source water, mix and measure seawater, establish temperature and flow, protect electrical connections, and set a consistent lighting approach.

  • RO/DI or appropriate purified source water
  • Salinity measurement and controlled adjustments
  • Temperature, circulation, lighting, and electrical safety
Ready for Week 3 when: salinity and temperature are measured and stable, equipment operates normally, flow reaches the display, and every cord is safely routed.

Open Week 2: Add water and commission the equipment

Cycle and stabilize

Build the biology and the habits

Start a fishless cycle, manage evaporation, prepare replacement seawater, recognize normal early changes, and practice the routine before animals arrive.

  • Test-based cycling instead of a fixed countdown
  • Freshwater top-off and stored replacement seawater
  • Diatoms, mechanical filtration, cleaning, and observation
Ready for Week 4 when: the cycle meets verified testing criteria and temperature, salinity, top-off, cleaning, and observation are repeatably stable.

Open Week 3: Cycle the aquarium and build stable habits

The first animals

Add a cleanup crew with a real job

Choose a conservative mix based on observable needs, evaluate the seller and animals, plan an appropriate acclimation, and feed only when the aquarium cannot support them naturally.

  • Role-based selection instead of a generic gallon package
  • Seller, compatibility, arrival, and acclimation decisions
  • Observation-based feeding without nutrient overload
Ready for Week 5 when: the cleanup crew is active, the tank remains stable, excess food is absent, and the biological filter and routine have adjusted.

Open Week 4: Choose a job-based cleanup crew

Clownfish and routine

Choose your first fish responsibly

Select a beginner-suitable captive-bred clownfish or pair, recognize healthy behavior, plan a cautious arrival, feed without excess waste, and begin the recurring care schedule.

  • Species, number, size, behavior, and health criteria
  • Arrival, acclimation, disease, and observation planning
  • Feeding, top-off, cleaning, filtration, and water changes
Ready for Week 6 when: the fish eat and behave normally, the aquarium remains measured and stable, and the maintenance routine is sustainable.

Open Week 5: Choose and introduce clownfish

Anemone readiness

Decide whether to add one—or wait

Evaluate sustained stability, testing, lighting, livestock health, and maintenance consistency before choosing a healthy captive-propagated bubble-tip anemone.

  • Measured readiness instead of “six weeks means ready”
  • Healthy-animal, transfer, light-acclimation, and powerhead safety
  • Conservative feeding and realistic hosting expectations
Ready to add an anemone when: you can demonstrate sustained stability and meet every care requirement. Waiting longer is the correct decision whenever a criterion is uncertain.

Open Week 6: Make the anemone-readiness decision

Week 1Dry setup
Week 2Running system
Week 3Cycle and habits
Week 4Cleanup crew
Week 5Clownfish
Week 6Anemone decision

Free guidance and complete instruction

The two resources work together

The free six-week series

  • Explains each week’s outcome and why it matters
  • Provides preparation and readiness checks
  • Helps prevent common beginner mistakes
  • Connects you to the right public guides and resources
  • Remains useful even if you do not purchase the kit

The complete HelloReef course

  • Includes more than 50 detailed videos with the kit
  • Shows the exact equipment and complete process
  • Provides step-by-step demonstrations
  • Includes the complete challenge and bonus-learning experience
  • Offers the deepest guidance for this exact aquarium path

One important expectation

Clownfish do not need an anemone

Hosting is optional and cannot be guaranteed.
A healthy clownfish can live successfully without an anemone, and a clownfish should never be physically forced into contact with one. If hosting happens, allow it to develop naturally.
Common questions

Before you choose this path

Can I finish the course faster than six weeks?

You may complete some physical setup work faster, but biological cycling and animal readiness cannot be rushed. The readiness checks—not a target date—control when you continue.

Do I have to add an anemone in Week 6?

No. Week 6 is an anemone-readiness decision, not a deadline. Waiting weeks or months longer may be the better choice, and clownfish do not require an anemone.

Will the free guides contain the entire HelloReef course?

No. The public guides provide useful outcomes, preparation, readiness checks, and general guidance. The complete kit-included course retains the detailed demonstrations, exact equipment process, and more than 50 videos.

Can I begin with a later week?

Use the weeks in order for a new aquarium because each readiness check depends on the work before it. If your aquarium is already running, start with the earliest week whose completion criteria you can verify rather than assuming the calendar work is finished.

The most guided beginner path

Want the complete HelloReef experience?

The free six-week series will help you understand the journey. Purchasing the HelloReef kit gives you the aquarium system and the complete course with more than 50 detailed setup and care videos.

View the HelloReef kit and course

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