Review on Penn Plax Cascade Aquarium Filtration by Quinton Wonsley

I have been an aquarist for 50 years so I have used most of the well known brands. I needed a low budget proof of concept filter - experimental stuff. This is an amazing filter. However, there is no way I would fit it into a 100 gallon saltwater aquarium and I am very skeptical that it will do. This filter is quiet and well made. Assembly took a minute at most and everything fits well, feels high quality and fits together perfectly. Ideal. I estimate this filter will work very well for nano reef aquariums up to 30 gallons (headed) and 40 gallons for fish only saltwater aquariums. I would increase this to 60-75 gallons for freshwater. I would still recommend this pump for other sizes. Just take 2. Personally I would have two of these in a 40 gallon refrigerated truck, but I also use a low flow head. Disadvantages of buying this filter. The price is excellent for what you get and what if you have to buy two or three. It will still deliver quiet, great filtration for your hard-earned money. UPDATE Been running for a few months now, works great!