Goldfish

No i do not think people in the 21st century eat goldfish, but back in the 1920's they ate them because they thought it was cool, or they liked to show off, or they turned eating goldfish into a game. They usually saw who could eat / swallow the most, who ever manadged to swallow the most won how ever many dollars was bet on them. (*FACT* they did not usually chew or cook the gold fish)

yes they will it says it in the sea monkey handbook

Fish of the family Poecilidae, yes that includes Mollies, don't have the mouths to cause serious damage to each other, or other fish. They can peck at each other, but the worst that could happen is a guppy with a small rip in the tail. They can, however, eat fry. Fish of the family Poecilidae will spend more time showing off and "pushing" each other with their tails than actually fighting.

eventually, yes

None, algae indicates a problem that should be resloved.

Generally speaking No. Frogs mainly feed on insects. However during the mating season frog and toads can attempt to mate with fish, or virtually anything that is available and they can grasp hold of a fish for this reason.

Most fish you can except for the ones with toxins and you can eat rat's but they carry a lot of diseases in the wild.

Before dying, the frogs can go a couple months without food, but in 3-4 weeks they will start to suffer organ damage etc. I wouldn't recommend going more than 2 weeks without a meal.

yes, goldfish can get traumatized. if the are scared enough, they might get sick or even jump out of their tank if their isn't a lid on it.

You can if you want. However, the proper thing is flush him/her down the toilet, because that's what everyone does! :)

ANS #2

Burial is for the benefit of the survivors. If it helps to overcome the loss, the fish ought to be buried. It is just as appropriate to convince the bereaved that burial at sea is a fitting interment. If you are convincing, you can bury the fish with a flush.

Fish swim in order to move from place to place for whatever reason they choose.

As long as it's not flavored, you'll be fine.

you can not get intoxicated on tap water or a bottled water unless an additive has been introduced

three fourth of the bowl

no, the gold fish will eat it and its eggs

There are many similarities between angelfish and goldfish- to name one angelfish and fancy goldfish (especially the oranda) both have several long delicate fins.

Most hardy types of goldfish can survive at a temprature close to freezing.
Perfect temperatures are 68-70 degrees F, however, they can handle, for short periods of time, temperatures up to around 78 degrees F, but can handle for extensive periods of time, water down to 33 degrees F, or just above freezing. Of course, when the water drops below around 50 degrees F, feeding should stop as the goldfish goes into a sort of hibernation and does not eat.

A reason for goldfish swimming to the top is the lack of oxygen. Even if the water is perfectly clean, if you put too many fish in a small amount of water, there may be not enough oxygen in the water for the fish, so they go up to the surface where there is more oxygen. Constipation can be a reason for this weird behaviour too, and I feed my fish the insides of boiled frozen peas when this happens. It actually works! My fish are doing it again, so i plan to feed them the peas today.

Goldfish do change colour as they get older and also due to enviromental reasons.

Good quality food, good lighting and good water quality mean nice brightly coloured fish. Black is a normal colour for a goldfish.

The opposite leads to them fading or loosing colour.

My fish used to have black flecks, dad neglected him when I moved away and he lost all his colour and was a pale orange. Now I have him he's nice and healthy, turning bright orange again and gaining his black flecks back :)

If your fish is sick he will probably be at the bottom of the tank alot with his fins clamped to his sides and will generally look dull. :)

A goldfish will probably die in soapy water, unless you change the water really really fast completely with nice, clean, no-chlorine drinkable water. All the harmful stuff in it will kill the goldfish!

They are just like you and I. What goes in is processed by their digestive system and what is not used is passed out. If you are feeding the fish heaps of roughage then it will pass out more poo. If you are feeding the fish good stuff like earthworms then the fish will grow faster and poo less because there is less rubbish and more goodness in foods like earthworms.

Yes, fish do need dark. They depend on the cycle of light and dark to determine spawning and migration times. During the longer days of summer and the shorter days of winter they spend time eating. As the days lengthen for spring, some fish like northern pike, muskellunge, and steelhead travel to spawning grounds. For other fish like brook trout and smallmouth bass the shortening days at the end of summer signal spawning time.

Another reason for dark is that even fish need rest. Food is easy to find while it's light out, so they are fairly active in the day. As dark falls, feeding activity slows. Of course, a full moon on a clear summer night, doesn't slow the walleyes down; ask any determined fisherman.

its might be because of your water quality,do a 50% water change,see if that helps.also try and keep that ammonia down.ammonia is fish waste and un-eaten fish food that has been left to rot at the bottom of the tank so always siphon your tank.or your fish might just be sick,treat it straight away if its got signs of illness,if you leave it to late then it will be harder to cure.

No, goldfish are best with goldfish with the exception of weather (dojo) loaches, bristlenose plecos, and apple/mystery snails.
Although goldfish can survive in warmer water temperatures, they are a "cold water" fish and not a tropical fish.