The Sicce Voyager Nano 2000 is the safest first buy for most 3 ft freshwater tanks, and the Hydor Koralia Evolution 3200 is the pick if you want to plug into a timer. Go up to the Sicce Voyager 4 only for 4 ft and larger tanks. Owner evidence for every wave maker here is thinner than for filters, so I have said where a claim comes from.
The best wave maker for freshwater aquarium tanks is a small magnet-mounted pump that stirs the water in a gentle, broad current so debris cannot settle and oxygen stays even from one end of the glass to the other. Most freshwater tanks get by without one. The ones that benefit are heavily planted tanks, long tanks with dead corners, and tanks holding fish that come from moving water.
Three product types get sold under the same label. Prop-style stream pumps like the Sicce Voyager Nano push a wide, fixed current. Controllable wave makers, such as the Eheim streamON+, let you slide the output up and down. Cheap jet powerheads blast a narrow stream and are better as a dead-spot fix than a true wave maker.
The number that matters is litres per hour, judged against tank volume. A common hobby rule is roughly ten times the tank volume per hour for a freshwater community tank, with the filter and any wave maker counted together. Reef tanks run two to four times that, which is why reef-rated pumps are usually overkill in freshwater.
This guide covers five wave makers sold in Australia that suit freshwater tanks from about 60 L up to 700 L. It leaves out reef-only pumps and filter pumps. For a wider look at moving water, see the water pump guides on this site.
Aqua One’s own listing describes its ReefSim wave makers as marine pumps, and I could not find a current Australian retailer listing for Jebao, the wave maker planted-tank forums talk about most. Both are left out on purpose. Every price below is a live Australian listing, and the Hydor Koralia Nano range was sold out at two retailers when I checked, so I used the Evolution models instead.
Best Wave Maker for Freshwater Aquarium in Australia, Compared
| Product | Type | Best For | Key Spec |
|---|---|---|---|
| Sicce Voyager Nano 2000 | Fixed-flow stream pump | 60-200 L planted or community tanks | 2000 L/h, 3 W |
| Hydor Koralia Evolution 3200 | Timer-compatible wave pump | 180-370 L tanks, gentle broad flow | 3200 L/h, 4 W, water to 35 C |
| Eheim streamON+ 3500 | Adjustable stream pump | Tanks where you want to dial flow in | 1500-3500 L/h, 2.5 W |
| Sicce Voyager 4 | Fixed-flow stream pump | 400-730 L tanks and big cichlid setups | 6000 L/h, 14 W |
| Fluval Sea CP2 | Fixed-flow circulation pump | Small tanks up to 100 L on a budget | 1600 L/h, 4.5 W |
How I Compared These Wave Makers
Prices and specifications come from live Australian retailer listings checked on 29 September 2026 (The Tech Den, Aquaristic Online and Aquatic Supplies). Owner comments come from forum threads (3reef, Planted Tank Forum), aquarium blogs and Amazon reviews. Several of those pages blocked direct reading, so I used what I could open and named the source each time. productreview.com.au has no aquarium wave maker listings, and CHOICE and Canstar Blue do not cover them. The ACCC product safety site showed no aquarium powerhead or wave maker recall.
1. Sicce Voyager Nano 2000 – Best for most 3 ft freshwater tanks
This is the pump I would buy first for a typical 3 ft tank of 150 to 200 L. Sicce’s own freshwater rating for the 2000 sits at 120-200 L, the impeller cleans itself, and at 3 W the running cost is close to nothing on an Australian power bill. The magnet mount takes glass up to 10 mm and swivels through 360 degrees, so you can bounce the flow off the back glass and spread it out.
Owner reports on noise are split. One reviewer on 3reef, testing in a freshwater cube, called it near silent with a faint impeller sound only up close, while a planted-tank owner on another forum said theirs was audible across the room. Fixed flow means you tune it by angle, not a dial.
Against the Koralia below, the Voyager Nano is cheaper but has no controller link. It suits a planted tank well, and pairs with the lighting in the best LED lights for planted aquariums guide.
Pros
- Cheapest pump here rated for tanks over 100 L
- 3 W draw and self-cleaning impeller
- Nano 1000 covers 60-120 L if your tank is smaller
Cons
- Noise reports split between silent and audible across a room (3reef and a planted-tank forum)
- Fixed flow with no controller in the box
- Some owners found the Nano models weaker and noisier over time
2. Hydor Koralia Evolution 3200 – Best for gentle flow with timer control
Koralia is the name most planted-tank keepers reach for when they want a wide, soft current that sways stems instead of flattening them. The 3200 has a fish-protection net built into the housing, takes glass up to 15 mm, and can connect to a controller or timer for interval flow. The 35 C limit matters in an Australian summer, when a tank in Brisbane or Perth can drift up on a hot week.
The complaints are familiar. Planted Tank Forum threads and the Aquariadise review of the Nano version mention vibration noise when the magnet is not seated flat, and one cichlid keeper said the Evolution felt weaker than a smaller Nano. Some owners also warn that grit trapped under a magnet can mark the glass.
Compared with the Sicce above, this costs about $10 more and is the better choice if you plan to run it on a timer. A 4 ft tank often wants one at each end, so budget for two.
Pros
- Gentle, broad current that suits plants
- Timer or controller compatible for interval flow
- Fish-protection net and 35 C water limit
Cons
- Vibration noise reported when the magnet mount is not seated properly (Planted Tank Forum, Aquariadise)
- One cichlid keeper found it weaker than a smaller Koralia Nano
- The Nano versions were sold out at two Australian shops when I checked
3. Eheim streamON+ 3500 – Best for tanks that need flow dialled in
Here you can turn the flow down. That is the real appeal in freshwater, because a tank that mixes bettas, rasboras and plants often needs a soft current on one side and a firmer one on the other. The ball-joint magnet holder aims it anywhere, and the box lists both freshwater and marine use.
The catch is the evidence. The praise I could find is a 2014 Reef Builders hands-on of the original streamON+ (called bordering on silent, with a big body for the flow it moves), and I found no freshwater owner thread for the 3500 itself. Retailer pricing also swings: the sibling 6500 ranged from $189.90 to $249.95 across shops.
Pros
- Adjustable output from 1500 to 3500 L/h
- 3 year warranty and 2.5 W draw
- Ball-joint magnet mount for precise aiming
Cons
- Owner evidence is old and reef-focused (Reef Builders, 2014)
- Costs almost twice the Sicce Voyager Nano 2000
- Retail price of the 6500 model varies by about $60 between Australian shops
4. Sicce Voyager 4 – Best for 4 ft tanks and big cichlid setups
Big tanks change the sums. By the ten-times rule, a 5 ft African cichlid tank of 500 L wants around 5000 L/h in total, and this single pump covers most of that before the filter adds its share. Sicce lists a 316 stainless shaft and a 14 W AC motor, and Aquaristic Online lists it at $175.
Skip it for anything under about 300 L. I found no direct owner reviews for the Voyager 4, only general praise for the Voyager range from roundups. The listing shows a 2-pin EU cable, so check the plug or adaptor before assuming it drops straight into an Australian power point. For big-tank filtration see the guide to the best canister filters for large tanks.
Pros
- Moves 6000 L/h for tanks up to 730 L
- Stainless shaft and guard grid
- Front flow regulation for tuning
Cons
- No direct owner reviews found for this exact model
- Listing shows an EU 2-pin cable, so confirm the plug
- Far too strong for anything under about 300 L
5. Fluval Sea CP2 – Best cheap circulation pump for a small tank
Is it worth $89.95? Only for a small tank where the Sicce Nano 1000 is out of stock. The CP2 is a fixed-flow pump for tanks up to 100 L, mounted with a suction cup, and Fluval markets it under the Sea range, and US retail listings show it for both freshwater and saltwater.
Evidence is the weakest on this list. It comes from Amazon US review summaries I could only read as snippets: flow barely felt beyond 30 to 40 cm, a propeller or shaft failure after about six months, and a suction cup that weakens with time. Bettas in small tanks get stressed by strong flow, so if that is the use, read the best betta fish tanks guide first.
Pros
- Compact for tanks up to 100 L
- Widely sold in Australia under the Fluval name
- Low 4.5 W draw
Cons
- Amazon reviewers reported flow barely felt beyond 30-40 cm
- One reported propeller or shaft failure after about six months
- Suction cup mount reported to weaken over time
How to Choose a Wave Maker for a Freshwater Aquarium
Start with volume. Multiply your tank size in litres by ten, subtract what the filter already moves, and let the wave maker cover the rest. A 200 L tank with a 900 L/h filter needs roughly another 1100 L/h, which is a Voyager Nano 2000 with room to spare. If your filter is already a big canister, read the best aquarium filters guide before adding more flow.
- Small planted or community tank, 60-200 L: the Sicce Voyager Nano covers it cheaply.
- You want a timer or interval flow: the Hydor Koralia Evolution 3200.
- You want to adjust output by hand: the Eheim streamON+ 3500.
- A 4 ft or 5 ft tank over 400 L: the Sicce Voyager 4.
- Bettas, discus or dwarf cichlids: choose a smaller pump and point it at the glass to soften the current.
- Hillstream loaches and African cichlids: they cope with, and often enjoy, stronger flow.
Australian tap water and summer heat matter here. Warm water holds less oxygen, so surface movement counts for more in Sydney or Brisbane in February, and a wave maker that ripples the surface helps. Pair it with an air pump only if the tank is heavily stocked, and see the air pump guide below.
Related Aquarium Equipment Guides
Flow works alongside filtration, aeration and plants, so these guides on this site pick up where this one stops.
- Best aquarium plants for beginners in Australia
- how to add oxygen to a fish tank
- why fish gasp at the top of the tank
- what an airstone does
- how to cool down a fish tank
Frequently Asked Questions
Do freshwater aquariums need a wave maker?
Most do not. A healthy filter and a gentle surface ripple are enough for a lightly stocked community tank. A wave maker earns its place in heavily planted tanks, long tanks with dead corners where debris settles, and tanks with river fish such as hillstream loaches or African cichlids that enjoy a strong current.
How much flow does a freshwater tank need?
A common hobby rule is about ten times the tank volume per hour, counting the filter and any wave maker together. A 200 L tank therefore wants roughly 2000 L/h in total. Reef tanks run two to four times that figure, so a reef-rated pump is often far too strong for freshwater fish.
Can a wave maker stress bettas or discus?
Yes. Strong flow can tire slow, long-finned fish, and bettas, discus and dwarf cichlids are the usual examples. Pick a smaller pump, aim it at the glass so the current spreads out, and watch how the fish swim for a day before you leave it running unattended.
Can a wave maker replace my filter or air pump?
No. A wave maker moves water around the tank but does not filter it or add a bubble stream. Hydor states that the Koralia is for aquariums only and cannot act as a filter pump. Keep your filter for biological media and add an air pump only if extra oxygen exchange is needed.
Do I need a controller or timer?
Not for most tanks. A fixed-flow pump like the Sicce Voyager Nano is cheap and simple, and you tune it by angle. A timer or controller helps if you want pulsing flow or a night-time pause. The Koralia Evolution range connects to one, and the Eheim streamON+ has adjustable output.
For most freshwater tanks between 60 and 200 L, the Sicce Voyager Nano 2000 is the sensible first wave maker: low price, tiny power draw and a magnet mount you can aim. Choose the Hydor Koralia Evolution 3200 if you want timer control or a broad, gentle current for plants, and step up to the Sicce Voyager 4 only once your tank passes about 400 L. Match the flow to your fish before you fixate on a big number, because too much current does more harm than too little.
