does anyone know how you tell the difference between male and females?

this is my angelfish (with silverdollar to the left and yellow apple snail behind)

it's body is 2" long, then its tail is 3 quarters of an long (2cm).
and its overall height from top of top fin to bottom of long spilky fins is about 6"
Its eye's have red either side of the pupils.

this is my Silverdollar (and the angelfish)

its body is 3" long and its back fin is half an inch long (1.5cm).
and its overall height from top of top fin to bottom of belly is about 2 and a half inches

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215Litre/57gallon tank with:
13x Neon Tetra, 4x Glass Bloodfin Tetra, 1x Platy, 1x Silver Dollar, 1x male Bristlenose Cat, 2x Yellow Apple snails, 1x bronze Corydora & 1x albino Corydora

and a 22Litre/6gallon tank with 3x angelfish fry, the sole survivors of over 100 eggs.

the Silver Dollar also has a red stripe on the main fin at the back that goes from bottom of belly to tail fin (i think its called the anal fin)

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215Litre/57gallon tank with:
13x Neon Tetra, 4x Glass Bloodfin Tetra, 1x Platy, 1x Silver Dollar, 1x male Bristlenose Cat, 2x Yellow Apple snails, 1x bronze Corydora & 1x albino Corydora

and a 22Litre/6gallon tank with 3x angelfish fry, the sole survivors of over 100 eggs.

Sorry I can't help

Perhaps the one that lays eggs is the female

and the one with the remote is the male?

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fw leiden since 1979, fo salt since 1979, mixed reef 55g 2002-2009. Strong emphasis on the tank taking care of itself. Balanced with plant life, no water changes, tap water, no filters in FW. Only dosing calcium, alk, mag in marine reef tanks. http://www.aquariumforum.com/f15/my-...ods-26410.html
recent tanks (till 2009) 7 years- 10g FW leiden 7 yrs, 55g mixed reef 7, 2 yrs, 20g FW leiden, 10 g fw leiden , 29g mixed reef, current tank 55g leiden

I wish I knew, but very pretty fish!

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"Being ignorant is not so much a Shame, as being unwilling to learn".-- Benjamin Franklin

The only definitive method that I know of when sexing Angels is only at spawn time. Even then you can have two females "doing the dance"..Once ya have viable eggs, you've a pair. The tube on the female will be broader, the males more pointy.. (Makes sense if ya think about it).. A fairly good indicator is the presence or absence of a bit of a hump just in front of the dorsal fin... Usually the hump will be a male. Bill in Va.

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12 Tanks, 900 gallons. Discus/Angels/Malawi/Lake Victorias. Just added a 135 & 2 - 29's..

I breed South American Cichlids and my husbandry experience at first glance says Male. The only problem with sexing Angels or Discus is that they do not always fall under generalizations. However, there are a couple of determining factors I look for in young adults from the size of the fish I would say it is about 7-9 months old. When feeding your fish does the Angel defend the food? if it does it is probably a male. As well, at that age there should be a view of the papillae which is the breeding tube and females by that age will show a slight but definetly present tip of a tube. The males is only present if the fish is looked at from the bottom up and is stubbier and well hidden. The abdomen of the male Angel or Discus tends to be higher and rounder than that of the females which is lower and wider in girth. So that is how I am coming to my conclusion. Most people go for the bump on the head but I have had both Discus and Angel females with bumps but generally the females heads are slanted down the males are more bumpy and rounder. Hope that helps.