how to determine the gender of a goldfish,black moor,black molly and breeding heart?

Question

is it okay to put them together in one tank? and please watch this video and kindly tell me what are they doing? thank you so much..

Answer 1

Goldfish such as black moors are cold water fish and should never be kept with tropicals such as mollies and bleeding heart tetras. So, no, it is not alright to keep these fish in the same tank.

Answer 2

You didn't attach the video.

The black moor and goldfish shouldn't be kept with the others - these are both varietes of goldfish and are coldwater (best in temperatures 65-72oF), the rest are tropicals (temps of 76-85oF).

The molly will be easiest for determining the gender - all you need to do is to look at the anal fin (the bottom one closest to the tail). In a feamle, this looks like the other fins, but in a male, it's thin and pointed - compare the fin in this set of platies - male: http://fish.orbust.net/images/male2.jpg female: http://fish.orbust.net/images/female.jpg The molly's fins will be the same shapes.

In goldfish, you can only tell when the fish is at least a year old, and they're in spawning condition. This link will show you in photos what to look for: http://www.bristol-aquarists.org.uk/goldfish/info/sexing-fs.htm

In a bleeding heart tetra, the female will be plumper, and a male has a larger dorsal (top) fin.

Answer 3

Alright well first off you DO NOT want a Molly in with the goldfish. Bad idea. Tropicals can't mix with goldfish, they will kill each other. And even if they dont, they arent going to be very happy. Also, if you chose to have more than one fish in a tank, be sure to have at least 10+ gallons for each one. Golfish and Moor's can get pretty big. As for sexing your fish, they have to be a least year old to be sure. Check out the attached link; I find it useful :] I hope this helps, and good luck!

Answer 4

first it's bleeding heart.the black molly has different need(water/salt) to goldfish so i personally would not think it wise to house them together.
GOLDFISH;
Natural habitat:stagnant,slow flowing water.(china)
Size up to 35cm
Maintanance:400-600L is good for 6-8 fish
PH:around 7.0
Temperature:5-25c
Water change:every fortnight
FOOD:omnivours
Reproduction:female lays up to 1000eggs
Life expectancy:20yrs.
the sexual differences are best spotted when they're mature.Mature females are slightly plumper and a so called spawning rash ,which displays as small white spots on gills&gill covers during mating.
TEMP:2-25c.17-21c is ideal.12-24c for veil tail.
oxygen rich,well planted aquarium.
Food:omnivores.Golfish preparations fine/vegetation great.
BLACK MOLLY:
Natural habitat:estuaries&rivers.(mexico,us,south america)
Size:6-7cm,female up to 9cm
Sexual differences:Male has anal fin ,gonopodium(boy bit)
female rounder,fan shaped anal fin
Behaviour:calm,peacfull
Maitanance:Well planted,minimum volume of 100L for two males to 6-7 females.
PH;higher than 7.5
Water hardness:greater than 20dH.with SEA SALT added.
Temperature:26-28c
Change water 15% per week
Food:greenery should always be available,some pellets+small live/frozen prey
Reproduction:Viviparous(specifically ovovviviparous)Birth live young
Life expectancy:2yrs
good with others with same water requirments.
BLEEDING HEART TETRA:
Origin:upper amazon basin(peru,colombia)
Natural habitat:river banks with entangled roots.
Size:6-7cm
Sexual Differences:The male has longer dorsal&anal fins&is larger than female
Behaviour:likes to live in shoals
Maintanance:A 240Ltank is suitable for a shoal of about a dozen.
Ph:6.0-6.8
Water hardness:3-15dH
Temperature:23-26c
Change water:every two weeks
Food water:carnivorous
Reproduction:pair spawn in open water
Life expectancy:3yrs
hope they help you out.Sorry about the celcius&tank sixes are just examples to judge off.

Answer 5

Long tail goldfish are males. Females. tend to be shorter and its butt will be bulging out even more.