QUOTE(onscreen @ Jan 2 2009, 04:12 PM)
NO worries g-string. first of all, put the crabs in a temp tank first. Avoid using the aquarium substrate you bought for time being.
Make sure you have 2 water dish, sea salt water and fresh water. Sea salt MUST be real sea salt. Processed salt contain unsuitable minerals that could suffocate the crabs. Fresh water must be cooked / boiled water.
Food, don't give fish food as it have different diet values for crabs. For the time being, settle on fresh fruits and it is one of the main food source for strawberry crabs. Change your food dish every 24 hours and replenish it often.
For the big tank, its time to invest money into it. Depends on the size, get a moderately large driftwood for their climbing obsession. If you have a huge pocket, you can settle on some climbing toys for your tank decoration :
1. Exoterra fake jungle (lots of leaves varieties) Small and Large @ 8.90 ~ 12.90
2. Exoterra artificial vein (3 varieties) Fine / Medium / Coarse @ 10.90 ~ 22.90 *tip : if you are crazy enough

, buy all 3 for the optimal combo.
3. Exoterra granite rock cave (variable sizes) @ 9.90 ~ 40.90 *tip : best to get medium ~ large cave, depending on your tank for optimal hiding spot.
4. Exoterra granite rock water / food dish @ 8.90 ~ 29.90. This is entirely optional as you can use any Tupperware as alternative solution. For the food dish, you can go natural by using shells.
5. River pebbles @ varied price. I bought mine @ RM4 for 1KG. They are good decoration substrate to separate dry and damp areas. Also a good "floor mat" to prevent crabs carry in excessive amount of soil into the water dish.
6. Sand substrate. Most pet shops used to sell fine beach sand around RM10 and recently they no longer have such item in their inventory. So, you have to settle on a slightly rough river sand.
Alternative solution is to wait for 18 days, and i can get some washed beach sand from Port Dickson

Lastly, you can start decoration the tank as you see fit. If you use tupperware as water dish, make sure its deep enough for the crabs to submerge and emerge and also some small rock for them to crawl in and out.
Avoid using pine wood, bamboo items as it is harmful to crabs if chewed.
So far this is what i could think of. Fire your questions away if i miss out anything

wow...thanks very much for the indepth reply onscreen

u gave a lot of excellent pointers.
i'm going to change tank tomoro, so they're temporarily in the smaller tank first.
for the time being, i only have a little tupperware with fresh water, its from my filter, but not boiled. does it need to be boiled, or just filtered is fine? its RO filtered water.
will be buying the sea salt tomoro, any particular brand which is good? i guess one teaspoon to like a litre of water is fine right?
tank decoration i'll have to see whats in the shop tomoro. btw, any good shop to recommend with good tank decorations, empty shells for the crabbies to relocate and good supply of substrate? since i don't have the right sand, i thought i'll try the coconut fibre bricks, errm...forgot what its called. i read somewhere that its easier to maintain, plus they can dig and eat if hungry

and smell like peanuts.
i'll gladly pay u for the beach sand if u can get some. i don't mind waiting as i can put different substrates in the aquarium. freedom of choice for the crabbies.

but a shop recommendation for the above stuff would be very useful

thanks again for the replies.
cheers.