No.
Kissing Fish, aka Kissing Gouramis, are large growing (around 12") highly territorial tropical fish. The lip locking they do is actually them fighting, nothing cute about it! For a single Kissing Gourami you need at least a 75 gallon tank.
Goldfish are large growing, very messy coldwater fish. They should not be kept with tropical fish at all. For 4 Goldfish you need a minimum of a 55-75 gallon tank while they're juveniles, over 100 gallons when they're adults. And they should grow very fast.
You are describing unusual behaviour for goldfish. Are you sure you have 'Goldfish' as in (Carassius auratus)?
The cheapest way to keep a goldfish is to keep it in a fish bowl.........as long as the bowl is big enough the fish will be happy there.
Rule of thumb is to not mix tropical fish and goldfish.
Yes, a betta is a tropical fish. Tropical fish all have different temperatures at which they do best at, but goldfish are coldwater fish. Coldwater fish come from from a variety of different temperatures as well, so yes there is a temperature difference. You could not keep goldfish and bettas together because of the temperature difference.
Well fish such as goldfish go in cold water and fish such as angel fish (tropical) go in warm water. Try not to mix them up as one fish may not live. If you would like to get goldfish don't mix them with fantail fish with 2 split tails as the goldfish will attack. So keep fantails with their own kind. Hope I helped.
A fish bowl is not a solution its what you keep your goldfish/ beta fish in :P
Goldfish are pretty easy to keep.
an aquarium or a fish tank
it depends how big the fish bowl is
Get a separate tank for the goldfish (or swordtail either or) these fish are naturally not compatible and putting them together endangers the lives and overall well-being of both fish. If you keep them together much longer the goldfish will probably be wounded by the swordtail, get an infection, and die. Hope this helps
Zero, goldfish need very clean cool water and are very dirty fish.
The only reason for not mixing goldfish types together is to avoid cross breeding. Of course the basic stocking rule has to be observed no matter what kind of fish you have. :- 1 inch of fish needs a minimum of 1 gallon of water.