The St.Pierres recommends Miner All as the best. I did use Rep-Cal at one time and I can tell you it does not stick to crickets any where near as good as Miner All does. The Miner All seems to be a much finer powder. I still have a can of Rep-Cal that is near full but I spent the $8 on the stuff the experts say is the best.
If you want to read the exact words from Ron or Stella St.Pierre (I can't remember which on wrote it) read below.
Choosing a good quality calcium supplement:
I've tried just about every calcium on the market and tested them extensivly on hatchling tegus . The best calcium I have found for baby tegus is Miner All I (indoor formula with added d3 ) . This is WAY better than any other calcium I have tested .
Yes most pet stores do not carry it and it will take some extra effort of your part to locate it but YES IT IS WORTH IT .
It is usually appears to be a little more expensive than most other calciums since you usually have to pay for shipping but this stuff is very finely milled and it sticks to crickets very well so you will actually be using about 1/2 to 2/3 less calcium at every feeding since most of it will not be going to waste . (No I do not get paid by this company and no I do not own any stock in this company either and yes I do use it ) In the long run because you will have almost no waste this calcium usually ends up costing you a lot less than most of the calciums you will find at your local pet store . If your pet store doesn't carry it you can always ask them to order it for you too =)
Crickets are high in phosphorus and if fed unsupplemented your tegus will develop a calcium defficiency since calcium needs other mineral such as phosphorus to be in balance in order for your animals to absorb it correctly , same goes for Vitamin D3 (some calciums have way to much artficial D3 and this could cause a problem also ) . If you think all calcium supplements are the same look at the back of the bottle and compare them ... they are all a little bit different.
If you are using the Miner Al I you will only need a little tiny bit . Place your cickets in a cup and a small pinch (less than 1/8 tsp- basically like lightly salting your food -this stuff really does stick that well and you really only need a little tiny bit because of that ) of the Miner Al , put your hand over the cup and give it a little shake to distribute the calcium . Place these crickets in a bowl in your tegus enclosure (some will climb out but don't worry about it - you are trying to train your tegu to eat out of this bowl ) . Let your tegu eat as many of these crickets as he wants to .... you can not over feed a baby tegu on insects . It's better to feed a little bit a time and do it several times per day .
