Have just done a search for what I have posted in the past - here is one
QUOTE
I have had various species of mullet on fly from a number of places round the world. Tasmania, Texas, Canaries, Isle of Arran as well as in Sussex.
I usually start with a size 14 pheasant tail, which as far as I am concerned, imitates a tiny brown shrimp...or anything alive of that size shape and colour. That succeeds sometimes, as does a peach doll in locations where there are maggots in piles of rotting seaweed.
Plenty of times I have had no response, but I have found that either the mullet will go for the fly in the first half-dozen casts or not at all. I don't persist in trying for too long when they have refused several casts.
Thinking about the successes, most of those on PT have been in very small estuaries on the ebb tide, so the suggestion of nymphs being washed out of a small stream may have some substance.
Have also tried gammarid imitations, but these have only worked in one location on thin-lipped mullet.
Each season I resolve to spend more time after mullet with fly - the results when you hook one on fly tackle are spectacular.
At the end of each season I wish I had stuck to my resolve.
... so many sorts of fishing...only one lifetime.
The question asked on this thread was about a suitable outfit.
I use a #5 outfit. 9ft rod, double-tapered floating line, leader of about 12 ft, 4 lb BS tippett
Rinse your gear in fresh water after each session.
If you flyfish on the UK mainland, for thicks or thins, don't expect to catch many !
If you really want to increase your chances to catch UK mullet on fly, go south young man (warmer water = a bit more chance).
If you go even farther south - say to the Canaries, you will come across the Striped Mullet
Mugil cephalus which is much easier to catch on fly.
Good luck!