---
product_id: 470626942
title: "OASE CrystalSkim 350 Surface Skimmer for Freshwater and Marine Aquariums – Compact Internal Filter for Film Oil and Debris Removal, Quiet, Adjustable Flow, Shrimp-Safe, for Tanks up to 92 Gal / 350 L"
brand: "oase"
price: "$140"
currency: NZD
in_stock: true
reviews_count: 10
category: "Oase"
url: https://www.desertcart.nz/products/470626942-oase-crystalskim-350-surface-skimmer-for-freshwater-and-marine-aquariums
store_origin: NZ
region: New Zealand
---

# 350 L tank capacity Shrimp-safe fine intake slots Adjustable flow rate OASE CrystalSkim 350 Surface Skimmer for Freshwater and Marine Aquariums – Compact Internal Filter for Film Oil and Debris Removal, Quiet, Adjustable Flow, Shrimp-Safe, for Tanks up to 92 Gal / 350 L

**Brand:** oase
**Price:** $140
**Availability:** ✅ In Stock

## Summary

> 🌟 Elevate your aquarium’s vibe with the CrystalSkim 350 — where clarity meets care!

## Quick Answers

- **What is this?** OASE CrystalSkim 350 Surface Skimmer for Freshwater and Marine Aquariums – Compact Internal Filter for Film Oil and Debris Removal, Quiet, Adjustable Flow, Shrimp-Safe, for Tanks up to 92 Gal / 350 L by oase
- **How much does it cost?** $140 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/470626942-oase-crystalskim-350-surface-skimmer-for-freshwater-and-marine-aquariums)

## Best For

- oase enthusiasts

## Why This Product

- Trusted oase brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Tailored Flow Control:** Adjust skimming intensity to perfectly suit your tank’s unique ecosystem.
- • **Gentle Circulation Boost:** Built-in bottom outlet eliminates dead zones, enhancing overall tank health.
- • **Shrimp & Nano Fish Friendly:** Fine mesh intake basket protects delicate aquatic life without compromising performance.
- • **Crystal-Clear Surface, Always:** Effortlessly removes biofilm, dust, and floating debris for pristine water clarity.
- • **Premium Engineering & Peace of Mind:** German-engineered, Italian-made, UL-certified, and backed by a 3-year warranty.

## Overview

The OASE CrystalSkim 350 is a compact, quiet surface skimmer designed for freshwater and marine aquariums up to 92 gallons (350 L). It efficiently removes surface biofilm, floating debris, and dust to improve water clarity and oxygen exchange. Featuring an adjustable flow rate and a floating intake ring, it maintains consistent skimming even on uneven surfaces. Its shrimp-safe fine intake basket protects delicate aquatic life, while the built-in bottom outlet enhances water circulation by reducing dead spots. German-engineered and Italian-made, it is UL-certified, energy-efficient, and backed by a 3-year warranty, making it a premium choice for aquarists seeking crystal-clear tanks and healthy ecosystems.

## Description

The OASE CrystalSkim 350 removes biofilm, floating plant matter, and dust from the water surface to improve oxygen exchange and maintain crystal-clear water in your aquarium. A built-in bottom outlet improves circulation in low-flow areas, while the removable, collection basket protects small fish and shrimp. Designed for freshwater and saltwater tanks up to 92 gallons (350 L), the surface skimmer features an adjustable flow rate and a floating intake ring for consistent performance, even in uneven setups. Compact, quiet, and easy to install with suction cups, CrystalSkim is German-engineered, Italian-made, UL-certified, and backed by a 3-year warranty.

Review: 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.
Review: Excellent Design & Functionality. One of the Best Skimmers!! - This is actually one of the best surface skimmers I've owned and to be fair to other manufactures has a lot to do with design improvements over the years. Some others I've used in small tanks are: Eheim Skim350 (excellent skimmer but not for small fish unless install custom netting over the inlet); AquaNeat (budget price, decent but not best); ADA Vuppa II (quality built, pricey, skims well, motor mechanism prone to failure). What I like about the Oase 350: excellent skimming, inlet/outlet designs, pricing, functionality.

## Features

- QUICKLY CLEARS SURFACE DEBRIS – Removes biofilm, floating plant matter, and dust from the water’s surface to improve water clarity and support healthy oxygen exchange. Designed for use in both freshwater and marine aquariums.
- IMPROVES WATER CIRCULATION – In addition to surface skimming, the built-in bottom outlet creates gentle flow in low-circulation zones where debris tends to collect. This helps reduce dead spots and supports overall tank health.
- ADJUSTABLE FLOW & FLOATING RING – Customize skimming performance with an individually adjustable flow rate. The floating ring automatically adapts to changes in water level, maintaining consistent surface cleaning even when the unit isn’t perfectly level.
- SAFE FOR SHRIMP & SMALL FISH – A removable collection basket with fine intake slots protects delicate livestock while capturing the smallest particles that nets can’t remove. Ideal for planted tanks and aquascapes with shrimp or nano fish.
- RELIABLE QUALITY & BACKED BY WARRANTY – For aquariums up to 92 gallons (350 L). Italian-made, German-engineered, UL-certified, energy-efficient, and backed by a 3-year warranty.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BFFY1ZGF |
| ASIN  | B0BFFY1ZGF |
| Age Range Description | All Life Stages |
| Best Sellers Rank | #20,179 in Pet Supplies ( See Top 100 in Pet Supplies ) #89 in Aquarium Filters |
| Brand Name | OASE |
| Color | Grey |
| Customer Reviews | 4.1 4.1 out of 5 stars (691) |
| Date First Available | September 15, 2022 |
| Date First Available  | September 15, 2022 |
| Directions | As directed on box |
| Included Components | Aquarium heater, holder with suction cups and integrated post calibration tool, and power cord |
| Item Package Dimensions L x W x H | 6.57 x 5.28 x 2.2 inches |
| Item Weight | 12.5 ounces |
| Item model number | 86944 |
| Item model number  | 86944 |
| Manufacturer | OASE |
| Manufacturer  | OASE |
| Model Name | CrystalSkim 350 Skimmer |
| Number of Items | 1 |
| Package Dimensions  | 6.57 x 5.28 x 2.2 inches; 12.56 ounces |
| Size | Crystalskim 350 |
| Specific Uses for Product | Behavior |
| Target Audience Keyword | fish aquarium |
| Warranty Description | 3 year warranty plus 1 year warranty extension with online registration |

## Images

![OASE CrystalSkim 350 Surface Skimmer for Freshwater and Marine Aquariums – Compact Internal Filter for Film Oil and Debris Removal, Quiet, Adjustable Flow, Shrimp-Safe, for Tanks up to 92 Gal / 350 L - Image 1](https://m.media-amazon.com/images/I/61CFWVbJ0OL.jpg)
![OASE CrystalSkim 350 Surface Skimmer for Freshwater and Marine Aquariums – Compact Internal Filter for Film Oil and Debris Removal, Quiet, Adjustable Flow, Shrimp-Safe, for Tanks up to 92 Gal / 350 L - Image 2](https://m.media-amazon.com/images/I/81DGg-Qb-KL.jpg)
![OASE CrystalSkim 350 Surface Skimmer for Freshwater and Marine Aquariums – Compact Internal Filter for Film Oil and Debris Removal, Quiet, Adjustable Flow, Shrimp-Safe, for Tanks up to 92 Gal / 350 L - Image 3](https://m.media-amazon.com/images/I/710MQ-tLePL.jpg)
![OASE CrystalSkim 350 Surface Skimmer for Freshwater and Marine Aquariums – Compact Internal Filter for Film Oil and Debris Removal, Quiet, Adjustable Flow, Shrimp-Safe, for Tanks up to 92 Gal / 350 L - Image 4](https://m.media-amazon.com/images/I/71WDG3dkj4L.jpg)
![OASE CrystalSkim 350 Surface Skimmer for Freshwater and Marine Aquariums – Compact Internal Filter for Film Oil and Debris Removal, Quiet, Adjustable Flow, Shrimp-Safe, for Tanks up to 92 Gal / 350 L - Image 5](https://m.media-amazon.com/images/I/71I20Hv+7ML.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Hi just bought mine less than a month ago and the electrical component of the skimmer stopped working. Anyone have suggestions?**
A: Hello Maddi,
Thanks for asking!
If the impeller has been cleaned and there are no blockages, try contacting the manufacturer for suggestions.
Atlantic-Oase 330-274-8317
Dana at Practical Garden Ponds, 484-237-2080, Ext.1

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best Surface Skimmer in market
*by S***M on February 23, 2026*

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.

### ⭐⭐⭐⭐⭐ Excellent Design & Functionality. One of the Best Skimmers!!
*by R***Z on February 1, 2026*

This is actually one of the best surface skimmers I've owned and to be fair to other manufactures has a lot to do with design improvements over the years. Some others I've used in small tanks are: Eheim Skim350 (excellent skimmer but not for small fish unless install custom netting over the inlet); AquaNeat (budget price, decent but not best); ADA Vuppa II (quality built, pricey, skims well, motor mechanism prone to failure). What I like about the Oase 350: excellent skimming, inlet/outlet designs, pricing, functionality.

### ⭐⭐⭐⭐ Works Well for Biofilm, Constant Cord Adjustments
*by K***Y on November 24, 2025*

I maintain several planted freshwater aquariums with a variety of aquascapes, and I own a few of these surface skimmers. This model has a nice adjustable flow, runs fairly quietly, and does an excellent job clearing biofilm from the water’s surface. However, it has a frustrating habit of catching on its own power cable, causing the unit to sit too high or too low in the water—both of which make it ineffective. I often have to fiddle with the cord and reposition the floating ring to keep things working smoothly. Still, for the price, it’s a solid value—just wish the cord management was better designed.

## Frequently Bought Together

- OASE Indoor Aquatics CrystalSkim 350 Skimmer
- PAIZOO Fish Tank Digital Thermometer Accurate LED Display to ±0.9°F Tank Thermometer Aquarium Temperature Measurement Suitable for Fish, Axolotl, Turtle or Aquatic
- API ROOT TABS Freshwater Aquarium Plant Fertilizer 0.4-Ounce 10-Count Box

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-03-04*