For Sale Freshwater Aquarium Fish

Some aquarium manufacturers build tanks with a built-in wet-dry filter inside the tank against the back panel of the aquarium. These integrated filtration systems (IFS) work identically to the hang-on wet-dry filters, but have the advantage of having no siphon tubes or waterfall cups, so the look is cleaner.

Berlin Systems: A simple definition of a Berlin system is a wet-dry filter without the wet-dry chamber. These systems are designed without an

There is usually a control valve for regulating water flow. A check valve is usually placed on the filter intake to prevent the sand from packing-down when the filter is turned off.

Because water flows upward through the filter, the sand in the filter becomes suspended or "fluidized" in the water column, forming a fluidized bed of sand. If the flow of water is controlled properly, the sand does not flow out of the filter, but remains suspended. This happens because the flow of water is just fast enough to keep the sand in suspension. The weight of the sand prevents it from escaping the filter. Because the sand is suspended in wat

Well "Henry" decided that we would place the custom undergravel plates and gravel (2,000 pounds of washed #5 coral shell) into the tank without the above-proscribed test-fill. I can hear him now, "Oh Bob, dont worry, I tightened those plastic through hulls (in the bottom leading to and from the remoted filtration) just a smidgen with the channel-locks". Now, Dear Reader, you and I know better than to put a tool to a "hand-tighten only" fixture, a

The creation of this list was not based on any type of scientific method, but rather on our own experience with the many aquariums weve installed. Each species on this list has consistently proven able to tolerate high levels of ammonia and nitrite, for at least four weeks, in the many freshwater aquariums installed by The Aquarium Professionals Group.

Note to Experienced Hobbyists: This is a list that was written mostly for beginners. In some cases, we felt that it was best to use the common family names that aquarium and pet stores use for fish, rather than actual scientific classifications, so

These filter types still rank high as "bacteria homes" for newly-overcrowded systems and quarantine/hospital tanks. They weather changes (such as moving) and wont change your water chemistry during treatments.

Power Filters:

Hang on the back, inside the tank, pressurized and not canister models are all good ideas. In addition to speeding and stabilizing "cycling", these workhorses are great mechanical filters and water circulators. They

New Corycat Group

elpono_njg posted a new topic:

Come one and all, your corycat pics here...