







💎 Crystal-clear water, effortlessly achieved.
The OASE CrystalSkim 350 is a compact, German-engineered aquarium surface skimmer designed for tanks up to 92 gallons. It features an adjustable flow rate of 350 gallons per hour, a quiet yet powerful motor, and a smart debris collection basket that safely traps even the finest floating particles and biofilm. Its innovative bottom discharge improves water circulation by eliminating dead spots, ensuring a healthier, oxygen-rich environment for all aquatic life. Backed by a 3-year warranty, it’s the ultimate upgrade for any serious aquarium enthusiast.













| ASIN | B0BFFY1ZGF |
| Brand | Oase |
| Customer Reviews | 4.0 out of 5 stars 501 Reviews |
| Included Components | Aquarium heater, holder with suction cups and integrated post calibration tool, and power cord |
| Included components | Aquarium heater, holder with suction cups and integrated post calibration tool, and power cord |
| Item Type Name | Skimmer |
| Manufacturer | OASE |
| Manufacturer Part Number | 86944 |
| Model Name | CrystalSkim 350 Skimmer |
| Model Number | 86944 |
| Model name | CrystalSkim 350 Skimmer |
| Number of items | 1 |
| UPC | 706759869447 |
| Unit Count | 1 count |
A**R
Really good
Great piece of kit and cleared the surface up in just minutes as I had seen it shown on YouTube.
G**S
Crystal skimmer for fish tank,
Just what I needed for my tank thanks
K**Y
Not for nano fish.
No good for small nano fish. Killing machine.
M**H
Not worth
Not upto the mark.
M**.
110V which doesn’t work in UAE, it will fry
Amazing product, however this listing is for the US version, which is 110V and UAE has 220V so this device will just overload and get damaged mine worked for 3 days before giving up, I did not notice the voltage rating sadly, Amazon was nice enough to refund me. Look for the UAE version or a 220V version of the same skimmer, it was amazing when it worked.
S**M
Best Surface Skimmer in market
One morning I noticed that thin oily film forming on the surface of my tank — the kind that makes even crystal-clear water look dull under light. It bothered me more than it should have. I added the OASE CrystalSkim 350 Surface Skimmer, and within a short time the surface looked noticeably cleaner and more reflective. 🌊 Surface Film & Debris Removal This is where the CrystalSkim really shines. It pulls in surface film efficiently without creating a whirlpool effect. Within the first hour, that hazy layer was mostly gone. Over a few days, the water surface consistently stayed clearer, which improved overall light penetration and shimmer. 🔇 Quiet Operation For something constantly running at the surface, it’s surprisingly quiet. There’s a soft hum if you’re standing right next to the tank, but it blends into normal aquarium background noise. No rattling or harsh suction sounds. 🔄 Adjustable Flow The adjustable intake is useful. You can dial it down if you have a smaller tank or sensitive livestock, or increase it for heavier biofilm situations. I appreciated being able to fine-tune it instead of dealing with fixed, aggressive suction. 🦐 Shrimp-Safe Design This was important to me. The intake design prevents shrimp or small fish from getting pulled in, and I’ve seen no issues with curious invertebrates exploring near it. That peace of mind matters in planted or shrimp-focused setups. 📏 Size & Fit It’s compact and doesn’t take over the tank visually. Compared to some bulky surface skimmers, this one blends in fairly well. It works for tanks up to 92 gallons, but it doesn’t feel oversized in mid-sized aquariums either. 💰 Value for Money OASE equipment tends to sit in the premium tier, and this follows that pattern. It’s not the cheapest surface skimmer available, but the build quality, quiet performance, and consistent film removal justify the investment if surface clarity matters to you.
N**S
sehr guter Oberflächen-Simmer
der Skimmer funktioniert in der kleinsten Einstellung bei meinem 450 ltr. Aqaurim ruhig und leise....das eingesaugte Oberflächen-Wasser strömt nach unten ins Becken.......bisher noch keine jungen Guppys bzw. Garnelen eingesaugt. Hat ja auch einen äußeren durchsichtigen Schutzring und nochmal ein Einsauggitter...die Silikonhalterung ist auch 1 A !
A**O
funciona excelente
se ve bueno, solo que las instrucciones no son muy buenas, algo complicado de entender, al principio, salieron muchas burbujas y estresaron a mis peces y corales, pero despues de unos minutos se arreglo solo, la capa aceitosa que se formava hasta arriba desaparecio en 5 min! funciona perfecto para mi nano reef! solo estaria bien que mejoremn sus instrucciones.
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