PetProvo • Aquarium learning lab

A little play.
A clearer picture.

Meet the DoPhin range. Sort the bottles, explore their uses and scale the published dose to your aquarium’s water volume.

Play the bottle shuffleDose calculator
Product numbers identify bottles—not a dosing sequence. These products are alternatives for different needs. Do not add them all, or combine treatments, just because you have sorted the shelf.

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01 / Click, swap & learn

The bottle shuffle

Arrange all nine bottles by number, lowest to highest: 1, 2, 3, 4, 5, 6, 7, 14, 15. Click a bottle, then click another to swap them. Use “Explore product” for its purpose, timing and dose. Works with a mouse, touch or keyboard.

Product reference0 swaps

The product guides are available below. Interactive controls will activate when the game loads.

02 / Measure with care

Aquarium dose calculator

These nine DoPhin products are liquids, so their published doses are in mL, not grams. This tool scales the PetProvo listing rate; it does not decide whether a treatment is appropriate.

Check your current bottle’s directions, species compatibility and treatment schedule first. Online listings do not provide a complete treatment course. If the bottle differs, follow the bottle and ask for clarification.

Your calculated amount

Choose a product & water volume

— mL

Enter the details and calculate to see a single listed-dose amount.

No grams conversion: liquid density is not supplied. This tool does not calculate repeat doses or bath treatments.

Have a powder with a dose stated in grams?

Use the exact grams per litres ratio on that product’s label. This separate arithmetic tool is not a DoPhin liquid-to-grams converter.

Enter the label ratio above.

03 / Your aquarium reference

Where each product fits

Start with the aquarium’s needs, not the bottle number. The guide separates water preparation, biological support, clarity products and targeted treatments.

Before choosing a product

  1. Check the water and equipment. Review temperature, pH, ammonia and nitrite, plus filtration and aeration. Water-quality problems can resemble disease.
  2. Identify the problem. White spots, rubbing, damaged fins or rapid breathing are clues, not a diagnosis. Seek aquatic veterinary advice for illness, severe distress or an unclear cause.
  3. Match one appropriate product to the need. Check freshwater/marine use and compatibility with fish, shrimp, snails, plants and biological filtration on the current label.
  4. Measure the actual water volume. Account for displacement. Use the label’s specified basis—whole tank or replacement water—and a suitable measuring device.
  5. Follow the full label instructions and monitor. Keep a record of product, amount, time and water readings. Do not improvise a repeat interval or combine medicines. Filter-media and UV instructions are product-specific.
The general order of care: assess water → identify the need → choose a suitable product → follow its label → monitor. There is no universal order for using all nine bottles.
DoPhin #1 Anti-Chlorine 200 mL bottle

Water preparation

#1 Anti-Chlorine

What it does
Helps condition new water before it enters the aquarium.
When to consider it
When preparing replacement water or an initial fill, following the bottle’s directions.
Published amount
10 mL per 100 L. This is the listing’s volume ratio, not a complete treatment schedule.
Before use
Use for the volume specified by your bottle. For separately pretreated replacement water, calculate that new water volume only. Do not assume this formula also treats chloramine unless your bottle confirms it.
Product & directions
DoPhin #2 White Spot 200 mL bottle

Targeted treatment

#2 White Spot

What it does
Listed for white spot and certain parasitic fish diseases.
When to consider it
After the cause of white spots has been assessed and this product is confirmed appropriate.
Published amount
10 mL per 100 L. This is the listing’s volume ratio, not a complete treatment schedule.
Before use
White spots are a sign to investigate, not a diagnosis by themselves. Confirm species compatibility and the full course on the bottle; do not combine with other medicines without advice.
Product & directions
DoPhin #3 General Aid 200 mL bottle

Targeted treatment

#3 General Aid

What it does
Listed for a range of common fish disease problems, including fin and body conditions.
When to consider it
When the identified condition matches the bottle’s stated uses.
Published amount
10 mL per 100 L. This is the listing’s volume ratio, not a complete treatment schedule.
Before use
A broad product description does not make this a routine additive or a cure for every illness. Water-quality problems and physical injuries need their own assessment.
Product & directions
DoPhin #4 Gill, Fungus & Parasite 200 mL bottle

Targeted treatment

#4 Gill, Fungus & Parasite

What it does
Listed for gill disease, fungal conditions and certain parasites.
When to consider it
Only when an identified problem matches the label and the fish species can tolerate the treatment.
Published amount
10 mL per 100 L. This is the listing’s volume ratio, not a complete treatment schedule.
Before use
Breathing difficulty can also be a water-quality or oxygen problem. The separate bath instructions on the listing are not the same as a whole-tank dose; this calculator excludes bath treatment.
Product & directions
DoPhin #5 Anti-Parasite 200 mL bottle

Targeted treatment

#5 Anti-Parasite

What it does
Listed for specified external parasites, including some skin and gill parasites.
When to consider it
When a parasite problem has been identified and the label supports its use.
Published amount
10 mL per 100 L. This is the listing’s volume ratio, not a complete treatment schedule.
Before use
Rubbing, mucus and rapid breathing can have several causes. Do not diagnose parasites from those signs alone. Bath-treatment dosing is excluded from this tool.
Product & directions
DoPhin #6 Green Away 200 mL bottle

Water clarity

#6 Green Away

What it does
Listed for algae control and green water.
When to consider it
When algae is the identified issue and compatibility with the aquarium’s inhabitants has been confirmed.
Published amount
10 mL per 100 L. This is the listing’s volume ratio, not a complete treatment schedule.
Before use
Review lighting, feeding and maintenance as well. This calculator uses the listing’s main rate, not its half-dose prevention wording; it does not invent a repeat schedule.
Product & directions
DoPhin #7 Crystal Clear 200 mL bottle

Water clarity

#7 Crystal Clear

What it does
Clumps suspended particles so filtration or settling can remove them.
When to consider it
For particle-related cloudiness after the cause of cloudy water has been checked.
Published amount
10–20 mL per 100 L. This is the listing’s volume ratio, not a complete treatment schedule.
Before use
Clear-looking water can still have poor chemistry. The listing gives a dose range, not a rule for choosing the higher rate. Confirm the appropriate rate on the bottle or with the supplier.
Product & directions
DoPhin #14 14-in-1 Bacteria 200 mL bottle

Biological support

#14 14-in-1 Bacteria

What it does
Listed as a bacteria booster and water conditioner for biological support.
When to consider it
When biological support is appropriate and the bottle’s instructions match your setup.
Published amount
10 mL per 100 L. This is the listing’s volume ratio, not a complete treatment schedule.
Before use
This is not an instant-cycling guarantee. Continue water testing and normal filtration. The listing includes freshwater, planted, saltwater, reef and pond systems; verify the label for your specific stock.
Product & directions
DoPhin #15 PSB Bio-Clean 200 mL bottle

Biological support

#15 PSB Bio-Clean

What it does
Listed as photosynthetic bacterial support for the breakdown of organic waste.
When to consider it
When waste-management support is appropriate, alongside aquarium maintenance.
Published amount
10 mL per 100 L. This is the listing’s volume ratio, not a complete treatment schedule.
Before use
It does not replace filtration, water changes or testing. The listing describes freshwater and saltwater use; confirm current bottle directions before applying.
Product & directions

Questions that matter

Can I mix products?
Do not assume products can be combined. Ask the manufacturer or an aquatic veterinarian about the exact combination and aquarium inhabitants.

Does clear water mean safe water?
No. A clarity product does not replace testing or resolving the underlying cause.

How often should I repeat a dose?
The shop listings do not consistently specify repeat intervals. Follow your bottle’s complete course; ask for clarification if it is missing. A mention of a water change does not establish a dosing frequency.

Should I dose the new water or the whole aquarium?
Use the basis stated on your label. The replacement-water option here is only for #1 when treating that new water separately before adding it.

Need help reading the label? Send PetProvo the product name and a photo of your bottle’s instructions.

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Product descriptions and ratios: PetProvo product pages, reviewed 13 October 2026. Individual source links appear in each guide. Ratios have not been independently verified against current manufacturer labels. General fish-care reference: Merck Veterinary Manual: Management of Aquarium Fish. This learning tool does not diagnose disease or prescribe a treatment course.

Product information

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