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Full or empty?

If empty, about 110 - 120 lb.

If full, about 1045 lb.

-- Just remember saltwater is less dense and therefore lighter than freshwater, so an aquarium filled with salt would weigh more. Also, you must take into consideration interior additives such as substrate, rocks and other solids, if you are trying to calculate the weight bearing of a floor or stand.

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Sub-tropical and coldwater fish can live without heaters BUT you must note that just because a tank doesn't have a heater in it, doesn't mean it's coldwater! To have a true cold tank you need to install a chiller, which is far more expensive to buy and run than a measly heater!

Fish from all temperature ranges will be stressed out by temperature fluctuations (such as you having the heating blazing during the winter, and air conditioning during the summer!).

What fish you can keep also depends on your tank size. Goldfish are the most common coldwater fish, they also need very large over-filtered tanks. Smaller fish like White Cloud Mountain Minnows and Zebra Danios need to be in shoals in at least 15-20 gallons or more.

Research fish species very carefully!

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sleek, scaly, underwater

sometimes slimy or rubbery

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The Golden Eye Grunt is a member of theHaemulidae or Grunt Family which are known in Mexico as "burros." In Mexican waters, the Golden Eye Grunt is found south of Magdalena Bay on the Pacific side of the Baja California peninsula, and as far north as Santa Rosalia along the Sea of Cortez Coast. On mainland Mexico, it is found from Guaymas to Guatemala.

The Golden Eye Grunt grows to a length of just over one foot and is generally found around inshore rocky reefs in the first 100 feet of the water column. The Golden Eye Grunt is viewed as good table fare but is quite rare and also small, making preparation questionable since they are usually too small to fillet.

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It depends on the size of the fish tank, the type of fish you keep, the filtration that you use on your tank, and whether you are using a bucket method, or have a gravel vacuum that attaches to a faucet

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If your aquarium water is consistently too warm for the species you are trying to keep, you can buy an aquarium chiller. These devices cost a fair bit more to buy than a heater, but not that much more to run. The main disadvantage of chillers, other than their expense, is that if you cool the water by more than a few degrees condensation will form on the outside of the glass. Don't use a wooden stand or a stand made of metal that might rust if you are planning on using an aquarium chiller.

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There are currently 28 recognised Betta species.

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Glofish, like most fish, cannot be pregnant. They do not carry their young internally, and thus pregnancy is impossible. Their young develop from externally fertilized eggs.

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Could be water quality, temperature, or he could just be constipated. Could be close to death, you can still save him/her though.

good luck!

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Next to impossible. I pull out as many as I can whenever I do a monthly cleaning of my tank. That, coupled with frequent gravel vacuuming and the immediate removal of any egg sacs you find, is probably the most efficient method. Another trick is to put in a piece of lettuce or cucumber, wait 30 minutes to a couple of hours, and take out the vegetable and all the snails on it, then throw it away. You can also put a vegetable into a plastic bottle, then remove the bottle when the snails get into it.

Depending upon what type of snail you have, you may be able to prevent them from laying eggs by keeping the tank filled all the way to the top, with as little space between the water line and the top edge of the tank as possible. Mystery snails, aka apple snails, lay their eggs above the waterline, and they can't lay any eggs if the tank is filled up full.

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Any ammonia is BAD. Your filter is not working well enough. To keep thing safe you will need to be doing some extra water changes (maybe daily) until the filter is working efficiently.

Ammonia should be kept at 0ppm at all time. It is toxic and leave permanent damage to the fish even if the fish survive it. Either your tank has not been cycled properly or the nitrogen cycle has crashed, or you have not cycled your tank at all. You need increase the partial water change to minimize the damage.

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Betta splendens? No they don't, they sink. This is why the male Betta blows a bubble nest, each egg gets a bubble and that's how it stays a float. Occasionally they will become unstuck and sink, it's the male Betta's job to catch it and put it back into the bubbles!

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What to feed a fish is not dependant on whether it was wild caught or captive raised, you feed a fish based on whether it is a predator, omnivore or herbivore. Though wild fish will more often need fresh foods, instead of prepared. At least when first aquired.

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A platy female is at maturity around 3.5 to 4 months old. In addition, they are livebearing fish rather than egg laying.

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Pole beans mature in 60 to 90 days.

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Cartilagenous fish have no bones.

eg:-sharks.

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no it does not .

yooh feel nothing .

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Whatever little crustacea and small fish and insects they can catch.

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The fish could well be getting ready to release her youngsters.

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Many types of fish travel to saltwater to breed. The scientific term is Catadromous. An example of a catadromous fish is the Barramundi, but there are many catadromous species.

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Some fish, like beta's, will need air. They have to get oxygen every once in a while. For lack of oxygen in the water, you might want to consider activated carbon rock pouches in to your filtration system, or connect an air pump and air stone in your tank. air pumps and stones do not oxygenate water, that is an old myth. a bubble moving to the surface only causes water movement, in order to get more oxygen in water you must either have live plants or some sort of waterfall that will break the surface tension dragging air in and allowing expelled gasses to be released at the same time, carbon is a good idea it will grab the excess nutrients that are using the existing oxygen. air pumps and stones do oxygenate the water by moving the surface of the water allowing gas exchange.

The circulation of water from bottom to top in the tank is what causes most of the oxygenation.

Another reason may be water temperature, If you have a large tank, and the bottom of the tank's water is colder then the top, your fish may require a level of heating in the water. I.E. Tropical Fish Tank.

its better to clean the water and add a lil plant from pets at home. or it can be coz they need oxygen or because they're trying to escape from something in the tank, aka ammonia or a different desiese. i could be because they are eating small particles of dust at the top.

Read more: Why_are_all_your_fish_swimming_at_the_top_of_the_tank_if_the_ammonia_and_nitrate_levels_are_ok

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Gills

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Yes. It not only provides water circulation and oxygen but houses essential bacteria that keeps your water quality healthy. As soon as it's turned off, that bacteria starts to die. The only time you turn it off is when you're doing you're weekly partial water change.

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Yes of course. Koi are very very similar to Goldfish.