"I picked up a PennPlax Small World filter/aerator to use as a second filter in my 5 gallon tank. I try to keep two filters running to minimize tank shock when changing the filter material. The one"... (read full reviews)
"I've had an Aqua Clear 110 (formally the 500) on my 75 gallon tank for almost 6 years. It is still going strong and works great. I always recommend this brand. I'm starting to have trouble finding the"... (read full reviews)
"I don't have alot of $$ so this is better then having those expensive filters that are already put together. I have a system that has 3 filterings items, 1 is the wheels, 2 is the filter you are"... (read full reviews)
"i use this in freshwater and saltwater and its optimum chemical filtration my tanks are always crystal clear and i love this carbon it works great and stays activated for a long time!"... (read full reviews)
"Although I only have a 3 gallon tank, the Eclipse filter is super easy to use and does a fantastic job of filtering my beta's tank. About once a month I just pop out the old filter and seat the new"... (read full reviews)
"I tend to keep a lot of 5 gal and under tanks for Betta's,baby fish,etc.,and I always keep these Penn Plex filters along with a few corner filters to set up smaller tanks.It's surprising that as long"... (read full reviews)
"I use extra Biomedia in all of my filters. This ensures you will not remove alot of your beneficial bacteria when you change out sponges and other filter media."... (read full reviews)
"I tried it to on my MARINELAND Emperor 400 filter on my 55 gallon fish tank, wich brings a extra sets of emty plastic fillable cartriges, and about 3 days, the water started to clear up, and nitrites"... (read full reviews)
"These cartridges are very simple to use.Rinse off,add to your filter box,and that's it.
I make mine last even longer by rinsing major gunk off of the cartridges in old tank water.
Buying by the 4 pack"... (read full reviews)
"I bought that month ago and that my betta love it clear water help breath through water good!! good for change filter up to month. this is very wonderful and my betta is 9 month old now. good fit in"... (read full reviews)
"I have used this brand and product in my fresh and saltwater aquariums for over 10 years. Occasionally I would change it out with cheap stuff or other brands just to test it. Other brands have never"... (read full reviews)
"We love this product..easy to use. All in one care for the BiOrb 9 gallon cylinder aquarium. What an awesome product as well. We've had different aquariums over the years, but this ones the best."... (read full reviews)
"I use this with my eclipse corner 5 gal tank. Since I have two goldfish in there I know they are probably going to produce more waste than the cartridge can handle so I added this on top of the filter"... (read full reviews)