Optional — RODI Water Prep (Recommended)

Remineralized RODI water is the gold standard for consistency and control.

Tap water can work for low-demand tanks, but for anything beyond easy plants — or if you want predictable results — use RODI + remineralizer.

My Setup (High Efficiency, No Lifting)

  • Store water in 27-gallon totes (Costco), with 2 totes per dolly for easy transportation
  • "Double box" each tote (one inside another) as a leak safeguard
  • Double up lids if stacking; do not stack more than 2 high

Production (RODI Fill)

7-stage
RODI system (BRS)
~2 hrs
Per tote (~25 gal usable)
90 min
Check-in timer (75% done)

Mixing Process (APT Sky)

  1. 1
    At ~90 minutes
    Place a submersible pump at the bottom of the tote — ensures full circulation and prevents settling.
  2. 2
    In a separate container
    Fill a 32 oz deli container halfway, add 1 scoop of APT Sky, shake for ~10 seconds.
  3. 3
    Pour into the tote
    Add to the pump inflow for immediate distribution.
  4. 4
    Final step
    Set a 30-minute timer — by the time the tote is full, water should be fully mixed and clear.
  5. 5
    Highly recommended
    Re-mineralize water at least 48 hours before use so it reaches room temperature and minimizes stress on fish.

Key principles

  • Circulation prevents uneven remineralization
  • Pre-mixing avoids clumping and settling
  • Timers remove guesswork and keep the process consistent

Step 1 — Remove Dirty Water

You can use a Python water changer (sink-powered), but it's too slow for multiple tanks or larger volumes of water.

My method (faster + consistent):

  1. 1
    Place a submersible pump inside a mesh bag — prevents shrimp or livestock from getting sucked in.
  2. 2
    Connect tubing from the pump to your sink (via the water change kit).
  3. 3
    Drop the pump into the tank and turn it on — water is pumped directly from the tank → sink → drain.

Key idea

Use the Python for routing water to the sink. Use the pump for actual speed (not sink suction).

Step 2 — Add Clean Water

  1. 1
    Roll your RODI tote next to the tank.
  2. 2
    Attach tubing to a second submersible pump.
  3. 3
    Secure the tubing into a fish breeding box using 2 clamps (more stable than 1).
  4. 4
    Hang the breeding box on the tank — the holes diffuse flow and prevent disturbance.
  5. 5
    Turn on the pump to refill the tank.

Why this works

  • Pump = speed
  • Mesh bag = safety
  • Breeding box = flow control
  • Clamps = stability

Best Practices

  • Stagger your tanks and combine water changes with glass cleaning. This can nearly double your speed.
  • While one tank is filling, the next tank should already be draining.
  • Always have all clean water prepared before you start.
  • If all tanks are in the same area, go from largest to smallest.

Example Workflow

  1. 1
    Clean inside glass of tank #1 with a Mr. Clean Melamine Sponge — knocks debris into the water column so it gets removed during the water change.
  2. 2
    Start draining tank #1 with your dirty water pump.
  3. 3
    While tank #1 is draining, clean inside glass of tank #2.
  4. 4
    Once tank #1 is drained, begin refilling with new water pump.
  5. 5
    While tank #1 is refilling, start draining tank #2.
  6. 6
    Once tank #1 is full, move the new water pump to tank #2 and refill.
  7. 7
    Repeat across all tanks.

In short

  • Do not fully empty and refill one tank before starting the next
  • Stagger the workflow so one tank is filling while the next is draining
  • Prepare all clean water in advance — do not mix or wait mid-process