I have a question, how many jars do you need for the Males and aggressive Females? I heard that a small spawn has 100 Fry? O.O So how many do I need? And where can I get so many Jars for a cheap price? You know, like $1 for 3?
I usually approximate how many fry I have and the number of spawn of the female. First time is usually 60% male, 90% male if the temp is extra high. Second time is about 40 - 50% male and the third spawn is about 30% male. 4th and more spawn is about less than 30% (sometimes only 10%).
I constantly collect 2ltr plastic bottles - used to cut them in half, but now I cut at the top to avoid jumping.