Hydro-Sponge Pro Filters Pro II
Good value. Performs as advertised
Bought this to biologically supplement my HOB filter. Adds additional bio filtering capability and stability to the system when I have to change one of the HOB filter pads. Also adds backup if the HOB goes off-line. I'm running it with an air-stone, so it's not effective as a filter media, but seems to be starting to load up biologically, which is what I wanted it for anyway. As a side note, my local "fish dealer" runs the sponge /mechanical filter combos in all of his aquariums. Funny he doesn't sell the sponge filters, not enough profit I guess.
April 13, 2014
Easy to assemble
Filter easy to assemble and install. While a little bulky, was able to hide behind rock work and plants. Installed so I could replace the cartages in one of two power filters with nitrate absorbing media. Nitrate levels in my 55 gal cichlid tank now run between 5 and 10.
February 19, 2014
nice sponge filter
Have 14 of these filters. They do a great job. Will be buying more.
February 18, 2014
I own several of these from DFS, a II, 3-III's, and a IV. I use them as back-up bio filters on my tanks after several times dealing with mini-cycles from power-outages or HOB filter malfunctions (from the power losses). Since starting with these sponge filters I have never had a mini cycle from a power/filter loss. Although I purchased them due to the number of outages I suffer from being in a heavily wooded area, I have also found my water to be clearer and my Coryadoras love to hang out on or near these filters. DFS doesn't sell the Pro I but I also picked up two of these elsewhere for fry/QT tanks that I keep seeded in my main tanks and they work wonderfully! They do take up space so if you want the easiest to hide the II is your best bet. If it is not your main source of filtration you could easily use a couple smaller models behind plants rather than a larger hard to hide model like the IV. I would definitely recommend these filters as back up units or seeding units.
February 15, 2014