I don't fertilize my Jades with fish emulsion.
In fact, I don't do much fertilizing of my Jades at all.
I will, however, be experimenting with Osmocote this spring.

I do use fish emulsion on just about everything else.

Josh

Fish emulsion isn't really appropriate for typical succulents, including Jades. Fish emulsion is nominally 5-2-2, which is too heavy in nitrogen for succulents. It is always best to use a balanced fertilizer with succulents, and apply it at a *maximum* of 1/4 the strength and frequency suggested by the manufactuer. In most cases, something like 1/8 of the manufactuers recomendation is appropriate. Even something like MiracleGro, which is 20-20-20 is better for succulents than fish emulsion, assuming you dilute it way down.

Beyond that, look for fertilizers that have the trace elements (micronutrients) like iron, boron, calcium, etc, as those are most often the limiting nutrient with succulents instead of the macronutrients (nitrogen, phosphorous, and potassium) which tend to be the limiting nutrients for nonsucculent plants.

Since jades are winter growers(cool season) and where you are they will probably be grown indoors near a window or artificial light I wouldn't feed at all. The plant will grow too fast, without sufficient light the growth will be spindly and weak.

No feeding at all ok. The branches are long and droopy and very week. I have recently moved it under florecent lights. Should I prune the weak long branches and see if that helps?

Yes!
Prune any drooping or downward-growing branches!
New leaflets will begin to appear at the site of the pruning within weeks. You have nothing to fear. Make your cuts about 1/8 to 1/4 inch above a node along the branch, and the stem will dry up and fall off cleanly when new leaflets are ready to emerge.

Josh

Bad picture, but you can see an old cut in the middle there that branched nicely. That limb had over-extended itself and was threatening to break under its own weight. So I pruned it back, and rooted the cuttings.
{{gwi:496593}}

Josh

aren't jade naturally a bush cause sometimes my jade starts roots in the branches

Here is a link that might be useful: {{gwi:496591}}

Yes, jades are normally a large bush or a small tree. The branches tend to get long and droopy with overfertilizing or not enough sunlight, and possibly too much water (although that would be more likely to cause rot). The best solution is to chop off the long droopy branches, chop them into several pieces and root them, and grow everything in as much direct light as you can possibly give them. Most succulents can never get enough light, unless they're used to shade. Then they can sunburn.

Jades will definitely root at the drop of a hat. Mine will often sprout roots and leaves at the same time from the same bud. Because any part of the plant will grow into a new one, from a knocked-off leaf to entire branches or the whole plant, jades are considered noxious weeds where they are capable of growing without human assistance.

I never fertilize my jades and they're flowering right now.

Do you have a sunny window for your plant? Are the florescent lights full spectrum?

good luck!
Laura