hi i recently moved and have 2 tanks that are connected to each other. one is 65 gal and one is 29. i completly emptied to 65g and put the sand in a bucket. the 29g i was able to move with the sand and water still in it. i let the sand sit in the bucket for 2 days thinking it would be ok becuased there was water mixed in the sand. but now the sand smells like rotten eggs. now what would be the best thing to do 1. should i wash the sand in freshwater and will this kill all the good bacteria 2 or should i throw the stinky sand in my tank becuse there is good bacteria growing in it and this smell is normal.