I am sorry to hear that Ricky passed away. She was a pretty little girl. I am curious if you had a chance to get a laying bin in the cage for her? She looked gravid to me although yes, a bit young - but it does happen. Either way, its too bad she's gone but I'm glad you're going to try again. I would like to chime in with a few suggestions, but please keep in mind that everyone has their own opinions on whats best for their chams. Its best to take in all the information, do your research and then apply the basics to your own situation and 'tweak' it as you go along.
First of all, take out the substrate. There is absolutely no reason for you to have this in the cage as it provides nothing beneficial to the cham and only raises the risk of a health problem. We had a member last week lose a Jackson's because it ate some deadfall off of a vine. The deadfall became stuck in its intestine and tried to work itself out however it got stuck in the cham's vent and then part of the stick poked itself through the skin on the leg and created quite a wound. There was nothing a vet could do and after a couple of days the cham passed.
Also, I have been keeping chams since 2007 and have always used a hood with coil UVB 5.0/26W bulbs. Most experienced cham keepers like the tubular bulbs but the coils work just as well. If you have read that you need to replace it, it is because a number of years ago the coils had a manufacturer's problem but that has since been fixed. Don't bother going to the expense of a new hood - the tubular hoods are quite expensive and trust me, what you have now is fine.
Now on to the supplementation issue and this is a matter of opinion - you should do your research and apply the information to your own situation as you see fit. The general rule of this forum is calcium without D3 at every feeding, calcium w/D3 twice a month and a multivitamin twice a month. Previously I had only been giving my chams the calcium w/D3 and a multvitamin at EVERY FEEDING, but realised I needed to tweak my own supp's as my 4 year old male veiled had chronic eye problems, gout and on/off again gular edema. After doing my own research I have implemented the supplement's AND the supplement schedule of this forum AND have added a teeny-weeny drop of preformed Vitamin A once every 15 days. It was my own decision to add the Vitamin A as I wanted to help Camo with his eyes, gout problem but you have to be extremely careful not to give too much VitA as they can overdose! So far my Camo is responding well - he's exploring more and appears more alert and happy. His eyes are still 'weepy' in the morning but I'm working on it and may perhaps 'tweak' my schedule a bit more in the next few months. If you want my advice I would start with the regimen of the forum and go from there.
Gutloading, as you well know is extremely important. If you are giving your feeders the cricket water (with calcium) I don't believe there is enough calcium in it to cause a problem in your chams...but it would be preferable for you to gutload with fruits and veggies and yes! check out SandraChameleon's blogs. She is a wealth of very good information and her blogs are a great read!
As for your light placement, I don't believe it really matters - as long as the lights are there and your cham has access to it, then the placement is a non-issue. There are some people here who have free-ranges and their cham's have access to the lights but aren't always near them. I personally have my UVB across the front of my cage and the basking light at the back. There is no right or wrong in this, its just what I prefer. Your basking light should be at least 8 inches above the highest basking point in your cage as your cham can become burned if it's any closer.
As for feeding, it would be best for your chameleon if you fed it in the (mid) morning or soon after 'lights on'. Your cham requires the lighting for proper digestion of its food so if you feed it later in the afternoon and then the lights go out soon after then your cham will sit all night with undigested food in its tummy with no benefit coming from the supplements and gutloading.
I would really recommend you research your supplements and supplementing schedule. As I mentioned, there are differing opinions on this, but as long as you know what you NEED to provide, as you become more experienced you can decide how much & when you want to supplement. This aspect of chameleon care is so VERY important and absolutely VITAL to its health.
A last note; I would source out a reputable reptile vet in your area in the event you have a health issue that needs immediate attention. The health of these little creatures can be so fragile that the difference between an hour to get it to the vet, or a day can be huge. Also, when your cham becomes sick there is a sense of panic (at least with me!) so the last thing I want to do is check Google or get out my Yellow Pages to hunt for an appropriate vet. It is also advisable, when you get a new chameleon, to take it to a vet for a fecal to rule out any parasites.
Good luck and I hope this helps. Again, sorry for your loss
