Wondering if anyone has tried a hydra filter before and how it went out of interest?
Ocean Free Hydra 50 Internal Filter 1000l/h - The Aquarium Shop Australia
http://www.rarefishfood.com.au/blog/hydro-pure-technology-aquarium-filter-faqs/
Ocean Free Hydra 50 Internal Filter 1000l/h - The Aquarium Shop Australia
http://www.rarefishfood.com.au/blog/hydro-pure-technology-aquarium-filter-faqs/