Dophin CF‑300
Flow rate: ≈ 410 L/hour
It’s sold as a “mini canister / external filter.
Suppliers often list it as suitable for “small tanks,” “plant/shrimp aquariums,” or small freshwater / marine setups.
What typical use‑recommendations suggest
Many sources and retailers recommend the CF‑300 especially for smaller aquariums (e.g. up to 40–50 L).
For a 100 L tank, a generally recommended flow rate (for adequate turnover) is ~ 3–5 × tank volume per hour — meaning 300–500 L/h.
At 410 L/h, the CF‑300 is on the lower end of that band, which means it could work — but might struggle with heavy fish loads, lots of waste, or a densely stocked tank.
What that means for your 100 L tank
If your 100 L tank is lightly stocked (e.g. a few small community fish, plants, or shrimp), the CF‑300 could likely manage — but it’d be near its upper comfort zone.
If you have many fish, large fish, or a “dirty” tank — or if you plan heavy stocking — the CF‑300 might not be quite sufficient. In that case, you might want a stronger filter (higher flow + larger media capacity).
Accessory Box Dophin C-1000 Canister Filter
Keep your Dophin C-1000 canister filter performing at its best with this complete replacement accessory box. It includes all the essential external parts needed to maintain smooth water flow and reliable filtration.
What’s included
Intake and outlet fittings
Hose connectors and elbows
Spray bar components
Suction cups and mounting clips
All plumbing parts designed for the C-1000 canister filter
Why this is usefulExternal fittings on a canister filter can wear out, loosen or become clogged over time. Replacing them restores efficient flow, reduces noise and helps your filter run like new again. This accessory box provides all the correct parts for the C-1000 in one convenient set.
CompatibilityDesigned specifically for the Dophin C-1000 canister filter.
Accessory Box Dophin C-500
Keep your Dophin C-500 canister filter running smoothly with this complete replacement accessory box. It includes the essential fittings and components needed to restore or maintain proper water flow and filtration performance.
What’s included
Replacement intake and outlet fittings
New hoses and connectors
Spray bar components
Suction cups and clips
All parts designed for the C-500 canister filter setup
Why this part is usefulOver time, the external parts of a canister filter can wear, crack or become clogged. Replacing them ensures stable water flow, quieter operation and reliable filtration. This accessory box provides everything needed to refresh the plumbing and fittings of your C-500 canister filter in one convenient set.
CompatibilitySpecifically made for the Dophin C-500 canister filter.
Black Sponge Dolphin – C-700 / 1000
Product Description
The Black Sponge for Dolphin C-700 and C-1000 canister filters provides efficient mechanical filtration while supporting beneficial bacteria growth in your aquarium. Designed to fit these specific models, it traps debris, leftover food, and fine particles, keeping water clear and promoting a healthy environment for fish and plants.
Key Features
Compatible with Dolphin C-700 and C-1000 filters
Traps debris and fine particles to improve water clarity
Supports biological filtration with surface area for beneficial bacteria
Reusable after rinsing
Easy to install and remove
Usage Instructions
Rinse the sponge thoroughly in tap water before first use.
Place the sponge into the filter’s designated tray.
Rinse or clean every 2–4 weeks, depending on tank size and water conditions.
Replace if the sponge becomes worn or compressed.
Specifications
Material: High-quality synthetic sponge
Color: Black
Fits: Dolphin C-700 and C-1000 canister filters
Care: Rinse only — do not use soap or detergents
Why Use This Sponge
The Black Sponge improves filter efficiency by mechanically removing debris while providing a large surface area for beneficial bacteria. It ensures stable water quality and a healthier aquarium environment.
Filter Wool Dolphin – C-700 / 1000
Product Description:Keep your aquarium water clean and clear with the Filter Wool for Dolphin C-700 and C-1000 canister filters. Designed specifically for these models, this high-quality filter wool efficiently traps debris, leftover food, and other particles, ensuring a healthy environment for your fish and plants.
Key Features:
Compatible with Dolphin C-700 and C-1000 filters
Provides effective mechanical filtration
Easy to install and replace
Reusable after rinsing
Helps maintain clear, healthy aquarium water
Usage Instructions:
Rinse the filter wool thoroughly in tap water before first use.
Place the wool into your canister filter according to the filter’s instructions.
Clean or replace every 2–4 weeks depending on tank size and water conditions.
Why Choose This Filter Wool:This filter wool is made for optimal performance in Dolphin C-700 and C-1000 filters. It is durable, easy to maintain, and helps extend the life of your filter by preventing clogging and buildup.
Additional Information:
Material: high-quality synthetic fiber
Color: white
Weight: suitable for one canister filter tray
Care: rinse under running water; do not use soap or detergents
Customer Tip:Regular maintenance of your filter wool improves water circulation and helps your aquarium thrive. For best results, pair with other Dolphin filter media.
FILTER WOOL – DOPHIN C-2300
Short DescriptionHigh-quality filter wool designed for the Dophin C-2300 canister filter. Provides superior mechanical filtration and crystal-clear water.
Full DescriptionThe Dophin C-2300 Filter Wool is a premium replacement mechanical filtration pad specifically made for the Dophin C-2300 canister filter. It effectively traps fine debris, waste particles, and cloudiness, helping to keep your aquarium water clean and healthy.
Ideal for routine maintenance or complete filter refreshes, this wool ensures your canister filter runs at peak efficiency.
Features
Compatible with Dophin C-2300 canister filters
Captures fine waste and suspended particles
Improves clarity and overall water quality
Easy to trim and replace
Should be replaced regularly for best performance
Includes1 × Filter Wool Pad for Dophin C-2300
Valve tap for Dolphin C-1300 and C-1600 canister filters
The valve tap for the Dolphin C-1300 and C-1600 canister filters is an essential replacement part that keeps your filtration system running smoothly and safely. This component controls the flow of water through the hoses, allowing you to stop or adjust circulation easily during maintenance, cleaning or priming.
A worn or damaged valve tap can cause leaks, reduced suction or unstable flow, which can affect overall filtration performance. Replacing it with the correct Dolphin valve tap restores a secure connection, dependable water movement and greater control over your system.
Made from durable, aquarium-safe materials, this valve tap fits both the C-1300 and C-1600 models securely. It is designed for long-lasting use and provides a reliable seal that helps prevent spills and protects your equipment during servicing.
Suitable for both freshwater and marine aquariums, this replacement part supports stable water conditions by helping the filter maintain strong, consistent circulation.
Intake pipe for Dolphin C-700, C-1000, C-1300 and C-1600 canister filters
The intake pipe for the Dolphin C-700, C-1000, C-1300 and C-1600 canister filters is an important replacement part that ensures your filter can draw water from the aquarium efficiently and reliably. This pipe guides water from the tank into the canister, where it passes through the full filtration process before being returned clean and clear.
When an intake pipe becomes cracked, blocked or weakened, the filter may lose suction, run unevenly or struggle to maintain proper flow. Replacing it with the correct Dolphin intake pipe restores strong, stable water movement and protects the performance and longevity of the filter.
Made from durable, aquarium-safe materials, this pipe is designed for a precise fit across all four compatible models. It connects securely, resists wear and is easy to install during regular maintenance or when replacing old components.
Suitable for both freshwater and marine aquarium environments, the intake pipe helps support consistent filtration, better water quality and a healthier habitat for your fish and plants.
Outlet pipe for Dolphin C-700, C-1300 and C-1600 canister filters
The outlet pipe for the Dolphin C-700, C-1300 and C-1600 canister filters is a key replacement part that ensures filtered water returns to your aquarium smoothly and efficiently. This pipe delivers a steady, directed flow back into the tank, helping maintain strong circulation, improved oxygen exchange and cleaner overall water movement.
A cracked, blocked or weakened outlet pipe can reduce flow, strain the filter or lead to uneven water distribution in the aquarium. Replacing it with the correct Dolphin outlet pipe restores optimal performance and supports consistent filtration across all three compatible models.
Made from durable, aquarium-safe materials, this outlet pipe fits securely into each system and is easy to install during routine maintenance or when upgrading worn parts. It is suitable for both freshwater and marine setups and is designed to handle long-term use without warping or leaking.
Keeping essential replacement parts like the outlet pipe on hand helps reduce downtime during servicing and ensures your filtration system continues to run at peak efficiency.
O-ring for Dolphin C-700 and C-1000 canister filters
The o-ring for the Dolphin C-700 and C-1000 canister filters is an important sealing component that keeps the filter operating with proper pressure and prevents leaks around the filter head. A secure o-ring ensures that water flows through the filtration system the way it should, helping maintain strong circulation and consistent performance.
Over time, o-rings can become worn, flattened or lose elasticity from regular use and cleaning. This can lead to dripping, reduced suction or unstable water flow. Replacing the old o-ring with the correct C-700 / C-1000 size restores a tight seal and brings your canister filter back to smooth, reliable operation.
Made from durable, aquarium-safe rubber, this o-ring is designed for a precise fit on both models and installs easily during routine maintenance. Keeping a spare o-ring on hand helps prevent downtime and makes servicing faster and more convenient.
Suitable for both freshwater and marine aquariums, this replacement o-ring supports healthy tank conditions by helping your filter maintain strong, steady water movement.
Rainbar for Dolphin C-500 canister filter
The rainbar for the Dolphin C-500 is designed to improve water circulation and create gentle, even surface movement in your aquarium. When connected to the canister filter’s outlet, the rainbar spreads the return flow across multiple small holes, producing a soft, uniform current that benefits fish, plants and overall water quality.
This type of flow distribution helps reduce strong jets, prevents stress in sensitive fish and increases surface agitation, which supports better oxygen exchange. It’s especially useful in planted tanks, community tanks and aquariums where calmer water movement is preferred.
Made from durable, aquarium-safe materials, the rainbar fits securely onto the Dolphin C-500 outlet system and is simple to install or adjust. You can position it horizontally or slightly angled to achieve the circulation pattern that works best for your setup.
Replacing a damaged or missing rainbar helps restore efficient water movement and ensures that your filtration system performs as intended.
Suitable for both freshwater and marine aquariums, the C-500 rainbar is a reliable accessory for maintaining healthier and more balanced tank conditions.
Intake pipe for Dolphin C-500 canister filter
The intake pipe for the Dolphin C-500 is an important replacement part that ensures your canister filter can draw water from the aquarium efficiently and consistently. This pipe guides water from the tank into the filter, where it passes through the mechanical, biological and chemical stages before returning clean and oxygenated.
A cracked, clogged or weakened intake pipe can reduce suction, affect flow rate or place strain on the filter. Replacing it with a correct-fit C-500 intake pipe restores optimal water movement and helps maintain stable filtration performance.
Made from strong, aquarium-safe materials, this intake pipe is designed specifically to fit the Dolphin C-500 model. It attaches securely, is resistant to wear and is simple to install during regular maintenance or when upgrading worn components.
Suitable for freshwater and marine aquariums, the intake pipe supports healthy tank conditions by ensuring the filter receives a steady and reliable water supply.