Its tough to answer all those info in a short answer.
Lets go over some juniper basics first:
1. Junipers are outdoor trees, not indoor trees.
Some instructions only say hight light and beginners think that indoor next to a window will do the trick, but it is false! Junipers have to be kept OUT DOOR in full sun or maximum exposure! They need the light. Keeping it indoor for a long time is the best way to "kill it".
The main issue is that junipers are "Evergreen" species, that means that even if it dies, the leaves stays "green" for a long time. I had a juniper cutting that took 11 months before its foliage turned brown.
You can keep it indoor for display for some days then it would be best to put it back outdoors.
2. The basics of bonsai on several other species ( maple, pines, ficus ) is to prune to encourage new buds and new growth. But Junipers draws "strength" from its leaves. This means that if you take out too much leaves in one go, it could weaken the tree or worst kill the tree. So if you do researchs on bonsai pruning/pinching, don't use a broadlead or deciduous ( ex maples or ficus ) pruning technique on a juniper. Look for juniper SPECIFIC info.
3. Junipers usually have juvenile foliage and mature foliage. The juvenile foliage is usually needle like (spiky), the adult foliage can come in two "flavor", either it stays a needle like foliage or it evolves and becomes a scale like foliage.
Next to go to your main question:
"I am soon going to replant the tree into a much larger pot with good soil. I looked online and saw that a juniper bonsai tree needs watered ever day. should I water it everyday or do as the tag says. at the moment I have been making sure the soil stays moist and checking it with a tooth pick every day. my tree has been sitting in my window sill with plenty of light and the window open for the past 2 days"
First thing : bonsai soil and water and feeding are completely inter-related.
You can't do one without the others.
Good soil is extremely vague. Is it good gardening soil? or good akadama ( a japanese soil used for bonsai ) or a good bonsai mix that you made yourself?
Pure gardening soil is usually a big NO for bonsai! Its fine when you've just repotted but it quickly gets compacted in the pot and reduces airflow and effectiveness of watering overtime.
Bonsai soil is a long and complex subject, still generating lots of debate even now within the bonsai community.
This link should give you some basics : http://maubonsai.blogspot.com/2012/07/bo...
A must read would be this : http://walter-pall-bonsai.blogspot.com/2...
In other words, the type of soil you use will dictate how you can water and feed.
If your soil retains water over a longer time, then water when it gets dry.
If your soil has good drainage, then you can water daily.
For the feeding, every two week should be safe for a start.
Weekly feeding can only be done if you have good draining soil and regular watering ( every day ).
If you are repotting the tree, then try to look for some "bonsai juniper repotting" articles or blogs on google.
Anyway, after you've repotted try to follow those few rules:
1. No direct sunlight for 1~2 weeks
2. No feeding for 3~4 weeks
3. Check on the soil more regularly
4. Make your you secure the plant well in the pot ( Google search "Securing bonsai in pot / repotting" ). There
Some generic info on Junipers :
http://www.bonsai4me.com/SpeciesGuide/Ju...
http://www.bonsai4me.com/AdvTech/AT%20St...
http://www.bonsai4me.com/AdvTech/AT%20St...
http://www.bonsai4me.com/AdvTech/ATJunip...
http://www.bonsai-made-easy.com/juniperb...
It might be a good idea to go thought the basics too : http://www.bonsai4me.com/bonsai_basics.h...
Ohh one last thing : live veins!
Junipers have live veins, in an extremely condensed resume, a live vein is a "vein" that connects the roots to one or several branches and transport water and nutrients between the roots and leaves.
If you cut that "vein" you effectively kill the area above that vein.
It other trees species the whole trunk behaves as a vein. When you cut off part of the trunk, the tree just continues to function by transporting water and nutrients around the cut off area.
Junipers are often known for its white dead exposed wood and it would be a in essence, removing the wood AROUND the live vein.
Junipers are out door trees. They do not live long inside.
The site has a species guide and you will find your kind of bonsai.
I have recently purchased a bonsai tree it says that it came from costa farms. i did a bit of research and it says that it is a juniper. the tag that my tree came with lists only 4 instructions.
-high light
-never below 40 degrease
-water once weekly and do not let soil dry out
-fertilize every 2 months
I am soon going to replant the tree into a much larger pot with good soil. I looked online and saw that a juniper bonsai tree needs watered ever day. should I water it everyday or do as the tag says. at the moment I have been making sure the soil stays moist and checking it with a tooth pick every day. my tree has been sitting in my window sill with plenty of light and the window open for the past 2 days.
