i got 2 convict ccichlid..the female is 2 inh and the male is 1 inch..they r really small and not really mature yet.well the female is and she ready to breed cuz she is orange..and the male is small and is only 1 inch..i also got three gold fish which is 2 and a half inch..i only have a ten gallon tank..can i put them all together in the ten gallon..i figure i buy a small 10 gallon cuz they small....and i made a mistake by buyin blue sand instead of yellow and brown..can i do that..can my convict survive in the blue sand..they been in there 4 three week and theyr ok but i dont no yet bout the gold fish i havent put them in yet..??