Power Heads
If your filter is not disturbing the surface enough or providing enough circulation, you can use a power head as well. A power head intakes water and mixes it with air as it is expelled.
Power heads. These motorized water pumps can also be effective aerators - especially if they utilize an air injection ("Venturi") device to better agitate the surface.
Power Head - A submersible pump normally used in conjunction with an under gravel filter.
Redox (Reduction-Oxidation) - A measure of how an organic reactions to takes place. This is an indication of overall water quality.
Power Head: A small submersible pump with only one moving part called the impeller. They are useful to create current within a tank (via a wavemaker) or to drive filters such as under gravel filters, canisters and protein skimmers.
Power Head - A small submersible electric pump. Often used in conjunction with Filter or UGJ systems.
Power head Electric impeller system fitted to biological filter return tubes to increase water flow.
Encyclopedia 1.0 by Rebecca Smallwood
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Power heads are small versatile water pumps that were designed for use with the under-gravel filter. They replace the air stone at the bottom of each lift tube and mount to the top, greatly increasing the water flow through the gravel.
Power heads in each separate tank is the most expensive, but best solution. One pump failure won't affect the other tanks, so losses will be limited to only one tank if something really goes wrong.
Power heads: There are a few brands, such as Tunze, that produce air cooled pumps that mount above the aquarium. Although these are very powerful and do not heat the water as much as submersed types, they are quite expensive.
Power Heads for circulation are used in the tank. The amount depends on the water motion requirements of the corals in the tank.
It is estimated that between 30 and 100 tanks using this type of filtration are now in operation.
Power heads are the most common supplemental circulation, but any other hang-on equipment you have with its own pump can add to your goal flow.
[edit] Why separate main circulation from the sump?
Power Head - A submersible pump normally used with under gravel filters.
Redox - (Reduction-Oxidation) A measure of how easy it is for organic reactions to
take place. This indicates overall water quality.
Powerhead: A power head is a small, submersible pump which is used to power wavemakers and UGF's (undergravel filters).
Wave machine with 4 power heads
Ozonizer
UV sterilizer
Sand filter
Pump to run the sand filter
Prizm ProDeluxe Protein Skimmer
Tetratec air pump
Already had 2 Fluval 403 external filters
4 (x 2 bulbs each) T5 light units ...
Now my set up: (I keep African Cichlids) 30 gallon long All-Glass tank (36"x13"x16") Under gravel filter w/3" gravel Aqualclear 301 Power head (pump for UGF) 150Watt heater Fluorescent light and hood some decorative rocks & ...
For most smaller tanks one lift tube will be plenty if you are using a power head to run the filter. If you are using an air pump to run the filter, you will probably need two.
SPONGE FILTERS These are open cell sponges that are connected to some mechanical device (bubbler, power head, pump etc.) that will draw water into the sponge.
There is not a constant unidirectional flow of water, as is the case with power heads.
As you can see there is no real filter; I'm using the live rock as the filter and there is a power head for circulation.
Being that they are found in fast flowing rivers, the Black Banded Leporinus should have a power head in its tank. This will simulate the strong currents it is accustomed to and will give the fish plenty of exercise.
A friend of ours gave us a good power head for some decent oxygen bubbles, but unfortunately, the part at the bottom which sucks up the water was uncovered.
Instead of air, power heads may be used to drive the filter. Power heads are submersible pumps that are mounted at the top of the lift tubes and pump water directly up the tubes and out into the aquarium.
Of the many different types of creating this needed water flow the most popular method is by using multiple power heads which are simply small submersible water pumps. The pumps are randomly switched on and off using a wave timer.
In preparation for breeding, add a power head and air stone to the tank, unplug the heater, and begin making 20 percent daily water changes with cool rain or reverse osmosis water. The temperature should be allowed to fall to 70-72F.
However, in reverse-flow filtration, water is forced down the air-lifts by means of a power head, power filter outlet or pump, and up through the gravel.
Also sitting in the sump is an AquaClear 801 power head, connected to 1/2" flexible tubing which goes in the chiller. I've got a UMI 1/4 horse power chiller, with heater control thermostat. The output of the chiller goes back into the sump.
Sited in the aquarium these filters have a very limited media content and usually a high turnover power head.
After you have placed your rock in the containers, place either strong aeration or strong power heads in the trash cans. This will help the rock shed its debris and provide oxygen to the living inhabitants of the rock.
Because a strong current is important, the use of a power head is recommended. Like other Anostomidae they position themselves head down in rocky clefts and fissures, and should be provided with similar conditions when kept in an aquarium.
The reason it is exactly half is because the power head on that filter is so powerful it has thoroughly cleaned the tank on the side where it is not, simply from the force of the current.
The albino knife senses fear and plays power head games. It senses fear from the Silver clown and therefore initiates skirmishes and engages in blind cheap shot (body) attacks often.
Create constant water movement with a power head or air stone.
Keep the area dimly lit to prevent algae blooms.
Perform 100% water changes twice weekly.
under-gravel filter - A type of filter placed under the substrate that utilizes an air pump or power head to pull water through the gravel and thus oxygenates the bacteria to help in the nitrogen cycle. Not recommended for live plant tanks.
Be sure to get sand-sifting and NOT filter-feeding cukes. The filter feeders are extremely poisonous, e.g., the Sea Apple,
if they die in a power head or by other means. Some of you out there will have 1st hand experience of this.
Keep oxygen levels high. All Tanganyikan tanks should have high O2 levels, but with Tropheus it's detrimental to their health. You should keep oxygen levels by with lots of surface agitation with strong filtration and power heads or air stones.
you can fill up via the outside taps and leave inside so they warm up to room temperature (which should be somewhat close to your tank temperature). You may have to leave them overnight. You can also throw an old aquarium heater and a power head into ...
It is done in a few ways some of them quite complex others as simple as an upside down collection bowl or dome under the water that the CO2 will stay in till dissolved. Others use air type stones or power heads that that the gas is bubbled through ...
system is not turning over enough water per hour particulate matter will not be caught up in the filter quick enough and you will see it floating around in your aquarium.
To increase circulation you can add submersible water pumps / power heads, ...
 See also: Water, Fish, Aquarium, Filter, Gravel
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