so after talking about it, budgeting it, planing it, and building my breeding rack is done. No more fish tanks for them now!!! So as always I have so many more questions: first a over view i have 7 females 1 had a small litter, 3 babies about to go off mothers milk, and 1 male about to get 2 more. so now the questions

1. How do you tell when a male/female reaches sexually maturity?
2. Is the gap on the rack too much? (see pic below)
3. How big do they have to be to eat food off the hardware cloth?
4. Can I color the tail with a sharpie to id the males faster?
5. Is the female in pic 4 & 5 sexually mature?

ps check out my other pics














Hope you enjoyed and thank you in advance for the answers