I have an irregularly sized 28 cent walmart goldfish I had bought 2 years ago. He is huge for a normal gold fish. I seen a koi at walmart for 15 bucks same size as my goldfish now. Its all gold too. Well the first fish we put in there was a beta of course their suppose to be fighting figh well the next day I guess his fight wasnt strong enough and dissapeared from the tank. About a month later we put 2 frogs in the tank also once again the next morning they dissapeared. So, about 2 weeks later we figured we put some big boys in there and put a 7 inch algae eater in the tank and you guessed it the next day it was gone. What Kind of goldfish is this Im raising???????? A common goldfish from walmart eating other fish just uncommon.

im not sure about the fish eating other fish things but the only reason i can think of it being so big is it might have accdentally been sold to you as a goldfish but it was actually a KOI!!! Does it have whiskas?

No it looks like a plain old goldfish the heart shaped tail and all

how big is it? they can be a lot bigger than people think.

yah have you ever seen an adult before? they are huge, but dont even compare to adult carp and koi.

Id say just guessing no about 8 inches long and about 3 1/2 inches wide but Im just wondering why in the world would he eat other fish I feed him 3 times a day

how big is the tank? i douby he ate the algae eater. the algae eater probably jumped out of the tank or something.

not POSITIVE how big the tank is but it takes almost 2 hours to clean it I know that for a fact. No the algea eater was not on the floor or anything or in the filters or hiding in either of the huge $150 rocks in the tank. But still I have not recieved an answer on why he would still have ate the frogs or beta or other little goldfish....ect

i am really not sure sorry jenniffer

i wouldnt know why a goldfish would kill like that. it probably harrased the betta though.

Goldfish will eat small animals but are not huge fish-eaters. An 8" goldfish is big but not huge. I have had 14" goldfish in my pond and still have some over a foot long. An 8" goldfish could easily eat any animals that died in the tank. Any of the fish and frogs you had may have died for reasons other than the goldfish itself, and then the goldfish could have eaten them. A small betta and small African dwarf frogs could be bullied to death by a large goldfish who could then consume them. I'm not convinced the fish or frogs didn't simply get stuck somewhere or jump out and then degraded before they could be found. A 7" pleco would not be killed by a goldfish, and he'd have trouble eating one as they have spines. Plecos are adept at jumping out any holes in the lid. If he did that, he would then bounce all over and perhaps end up lodged under something, never to be found (or degraded by that time). If found a paradise fish under our washer half a year after it "vanished."

Anyway, you've found one reason that it's best to keep goldfish with their own species and not mix in other species. Plecos may suck on goldfish; perhaps your guy knew that and beat him to the punch (but I doubt it).

I clean 4 aquariums in 2 hours every week so either your tank is over 100 gallons, or you're not cleaning it very efficiently. My largest aquarium (with fish; I have a 120 gallon with my lizard) is 50 gallons and takes 30-45 minutes at most to clean.

What kind of rocks did you have that were $150? That's a lot for rocks!

As for why a big fish might eat a little fish? Because he can!

Their huge rocks like in tropical tanks I guess they were made to make fish think their coral cause thats what they look like to me and oh are them things heavy their about 2 feet tall id have to say on each side of the tank. My ex step fathers friend gave us the rocks. So they were actually free for us but cost him big money :)

i think the person who bought the rocks got ripped off.

they sound huge and may have been made for a saltwater tank and may be about right for huge pieces of coral skelaton.

was the algae eater the pleco you just got? was the betta the same betta you just got?

Isn;t it also true that goldfish (koi, etc) give off an ammonia that's toxicto anything else you may put in with them? I've been told that & have never been able to keep anything but snails alive in a goldfish tank. I had 3 6" golds in a 10-gallon w/a 7" pleco & the guy at the store told me the pleco died because the ammonia from the golds burned its lungs. If the other fish/frogs were stressed out from that they could've jumped ship. You may not find their little bodies for a long time. That happned to my daughter's white cloud tetra. We found the body 3 mo after it jumped. Not trying to put a damper on your thesis but it makes sense to me.

goldfish that size need a bigger tank thats why the pleco died becuase of too high amonia and other chemicals.

All fish produce ammonia. Per body weight, a goldfish's output is not any more deadly than any other fish. This false idea has come about because goldfish are often heavy for their length and thus produce more ammonia compared to a skinny fish of the same length. Ammonia is ammonia whether from a goldfish or any other fish. If you put in a 3 foot red catfish in your 55 gallon tank with some small tropical fish (never mind that he'd eat them) without any cycling, the ammonia would soon kill them all. If you put 100 neon tetras in a 10 gallon tank, I think a pleco wouldn't stand a good chance either. There are reasons to keep goldfish in species-only tanks but ammonia production is not one of them. I have goldfish, koi, orfe, snails, frogs, etc. all in my pond so if there's room, you can certainly keep other fish and animals with goldfish. Goldfish and koi are two different species but both are heavy for their lengths.

Wow, thanx for clearing that up. It's nice to have a place that you can come & get reliable info :D

hows it all going now?

Actually big fish do eat little fish but it is no good putting a gentle giant with a little fish. That is because you know the giant will not harm the little fish, but the little fish doesn't know that so the little fish will have a short, terrified life.

in the world of fish, even the gentlest of giants still follow the law of the jungle: if it fits in my mouth, i will try to get it there.

My mbunas lived will with neons.