When you stated the water smells, how bad is it? I think these opae are extremely hardy so I'm sure water is ok.

I've just moved house, so the two remaining shrimp and snail have hopefully adjusted to the views and weren't too traumatised by the car journey!!!
I came in after work to check on the though and saw these wierd stringy bits hanging down from the top of the water... any ideas as to what this could be?