newbies 75 gall slice of ocean

My fish guy has a service business so i wind up with a lot of missed placed stuff from time to time the fish kinda come and go some times.

 

Well my tank crashed last night for some unknown reason i have lost every thing but one clown and a shrimp some how made it i am at a loss i have no idea what happened i have check and double checked every thing i took the water to a friend to retest the water both mine and his test came out perfect i have checked for stray voltage in the tank just cant seem to fig any thing out.ON the other hand i guess i will be moving the clown and the shrimp to a bio cube for now i have been waiting for the right time to start to set the 180 up so now is the time Im going to post the 75 and the stand in the for sale page when i get it cleaned out.

 

before-after pic?

 

That stinks:-[

 

there is nothing to take pics of its just rocks and a clown fish in there now i have not taken any pics of the tank in a while so i didnt even have any of the before it crashed