Pimp My Filter #24 - Superfish Aquaflow 300 Internal Filter
Channel: Pondguru
Date: 2019-01-21

Aqua-Flow 300 (Amazon): http://geni.us/FBb6
Aqua-Flow 300 (Ebay): https://ebay.to/2REvdg2
(Check local stores too - it is quite a common filter)
This seems to be a great little filter and the online reviews would seem to back up my findings in this video. 
It is extremely cheap too.
Although it is an internal filter it has a decent amount of space for foams and media as opposed to most other designs which rely on cartridge systems. Cartridges are sold for this filter but you do not need them since it is so easy to swap internal parts to function very efficiently.
It would make a good back-up filter for a large tank or a good main filter for a tank of between 50-100 litres / 13-26 US gallons) depending on stock. As the amount of media is limited by the size of filter I wouldn't say you'd achieve full cycle using this filter unless the tank was under 50 litres, then the reasonably high flow (540 lph) may be an issue depending on fish species but flow is adjustable.
Media used in this video is 'Biogravel' which is a highly porous gravel made from same materials as 'Biohome' - media available here: http://www.filterpro.co.uk

The goal with any filter is to try and achieve FULL CYCLE filtration which is the reduction in ammonia, nitrite AND nitrate - if you look anywhere online you'll see people tell you that the nitrogen cycle in an aquarium ends with the production of nitrate which is removed by regular (often large) water changes. 
That is HALF the cycle and is done by AEROBIC bacteria which favors highly oxygenated conditions and is very easy to grow on any surface.
The last part of the cycle (reduction in nitrate) is completed by ANAEROBIC bacteria which favors an environment which is very low or devoid of oxygen. It takes filter media with a very specific internal structure to support both aerobic and anaerobic bacteria to allow for full cycle filtration but a suitably sized, well set up filter, will allow the full cycle to complete which results in more stable water conditions and less water changes (typically 10% every 1-2 weeks). Canister filters will generally offer the best provision for filter media but even internals can be significantly improved to boost water quality and fish health.

If anyone tells you that a full cycle cannot be achieved and that nitrate is only reduced by plants or water changes they are either misinformed (repeating old information) or intentionally lying to maintain the ignorance of their followers or customers. A full cycle is entirely natural - we just need suitably sized, well set up filters to achieve that goal.

The following videos will be useful to anyone interested in learning more about filtration, bacteria and making the conditions for your fish as good as possible:
Sizing a canister properly and filter set up: https://goo.gl/om19un
Looking INSIDE different filter media: https://goo.gl/hZWS6c
Bacteria and filter media: https://goo.gl/123gAF
How to clean an aquarium: https://goo.gl/bPMhvh
Aquarium tips / filtration playlist: https://goo.gl/pXgqVj

Check out my channel for hundreds of videos on a wide range of my hobbies - many of the videos have educational content so if you have enjoyed any give them the thumbs up and share anywhere you think others may benefit from viewing.

This channel is purely a hobby for me so I will never ask viewers to donate money for any of my projects or charge anyone for information - information should be shared freely and I certainly don't consider myself an 'expert' in anything I pursue as a hobby so please do your own research, never accept anything as 'fact', reject anyone claiming to be some sort of authority or 'expert' and make your own minds up about anything you wish to study. 

We all are on a long path of learning.........

If you've enjoyed this video please check out the playlists on my channel for hundreds more  - on a variety of subjects.
See you next time.
Pondguru 

FILMING EQUIPMENT:
Panasonic HC-VX870 HD camcorder http://geni.us/3UwE
+Rode stereo microphone: http://geni.us/4OL
+Rode 'deadcat' mic cover: http://geni.us/1pmn
JVC Everio quad proof HD camcorder: http://geni.us/e09e
+Rode 'deadcat' mic cover (opened up and held between tripod and camera base) http://geni.us/dee24
Zomei Z666 tripod: http://geni.us/1a1af3
Manfrotto MTPIXI-B PIXI mini tripod: http://geni.us/87f7