SunSun-China HW-304B 5-Stage External Canister Filter with 9-watt UV Sterilizer, 525 GPH
|Price:||$65.99 & FREE Shipping|
- Good for up to 150 gallon fish tanks
- Dimension: 11" L X 11" W X 17" H
- Flow rate: 525 GPH (2000L/hr.)
- Built in 9 Watt UV sterilizer for controlling algae spores/bacteria and promoting clear water
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The SunSun HW-304B external 5-stage canister filter with built in UV sterilizer is ideal for tanks up to 150 gallon. It is capable of handling up to 525 gallons per hour with 4 flexible media trays that allow you to add your media such as SunSun's activated carbons, ceramic rings or bio-balls (each sold separately) to achieve excellent mechanical, chemical and biological filtration. The HW-304B has a built in 9 Watt UV sterilizer to help kill algae spores and bacteria, promoting clear crystal water. The HW-304B canister filter also has a convenient self-priming pump that eliminates the need for manual siphoning.
Size: HW-304B Filter
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This item Sunsun HW-304B 525 GPH 5-Stage External Canister Filter with 9-watt UV Sterilizer
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|Item Dimensions||11 x 11 x 17 in||12 x 12 x 18 in||16 x 20 x 14 in||19.3 x 15 x 12 in||13 x 10 x 15 in||9 x 9 x 15 in|
Top Customer Reviews
1st Tray (bottom tray): coarse, medium, fine filter sponges (bumpy side down -- ignore my pic as it shows them bumpy side up!)
2nd and 3rd trays: Seachem Matrix Bio Media (2 liters, but 3 would be perfect)
4th tray (top tray): Diamond blend ammonia neutralizing carbon sitting on filter floss
A FEW TIPS:
1.) The bottom tray does not actually sit on the bottom of the canister. There are about 2 inches between the bottom tray and the base of the canister. Add some gravel, or in my case, I added some gravel along with the old ceramix rings from my previous filter for this tank (helps with keeping some of the beneficial bacteria from my old media) into the base of the canister. The gravel/ceramic rings will help knock some of the gunk off the water before it hits your filter sponges in the first tray, and thus keep your sponges cleaner, longer.
2.) Soak the green tubes in HOT water for 10-15 minutes. The tubes are very stiff and strong (as they should be), but this makes them hard to work with when you are trying to hook them up behind your tank. Soaking them in hot water makes them soft and SO much easier to work with...they slid right onto the intake/output pipes without any problems once I soaked them in hot water. I was also able to manipulate the tubes with ease behind my tank and easily trim the tubes to the desired length so I eliminated slack and made the water flow more efficient.
3.) Fill your canister 3/4 of the way full with TANK water. Then add the trays. This made priming an absolute BREEZE for me. Once I had water in the canister, I hooked up the green tubes, plugged it in, and literally pushed the blue priming button 5 or 6 times and water immediately began to flow into the canister from my intake tube, and then within 30 seconds, back up out the outflow tubes. That's it! The canister was working within minutes! Canister sits under my tank in a cabinet and it's SUPER quiet.
4.) When setting this up for the first time, I'd recommend NOT using the UV bulb for the first week AT LEAST. That way you can cycle your tank with the new media...build up some good bacteria, and then when you are confident it's cycled enough, turn the UV bulb on if you feel like you need it. IMPORTANT: You will notice a small white piece of plastic at the end of the UV bulb..this should be removed! This is there to protect the bulb from breaking when the product is shipped. You can open the UV case by gently twisting the casing counter-clockwise and then sliding the bulb casing off. Remove the white plastic tip, and then carefully replace the casing making sure it's locked in place.
Easy to set up despite the very poorly translated instructions. Came with everything expected.
Easy to fill with your favorite filter media - mechanical filtration in the bottom tray, then biological, then chemical if desired, then a polishing pad if desired. For the first few weeks, the flow was very powerful. I remember detritus lifting off from the substrate of my 46g bowfront and heading towards the filter intake.
After a few months, the flow was reduced to a trickle. Even after extremely thorough cleaning, and after cleaning and coating the gaskets with Vaseline, nothing would improve the flow. Within another month, it began leaking catastrophically from the side. My tank suffered as a result.
I contacted the seller and he said he would send replacement parts as long as I paid shipping. OK - I agreed, but the parts never came. After weeks of emailing the seller with no response I have decided to write this review. You might get lucky and receive a filter that delivers 50% or 65% of advertised flow that doesn't diminish after a few months, but after my stock suffered from unreliable filtration, I won't be risking it again, even at this price.
I do not expect advertised flow from any brand canister filter, even less so from a Chinese brand - however, after getting less than 20% of advertised flow from the SunSun (tested it before the leaking started), and after being given the run around from the seller, I'd warn against buying this brand.