loosing all my fish need help to identify solution
I’m slowly loosing everything in my tank, i recently lost my 2 anemone, 1 tomato fish, 4 clown fish and i’m in need of desperate help.. anything you guys can give would be much appreciated…
i have check my water parameters and everything is normal, i’ve even took some water sample and brought it to my LF and he also said everything is ok.. but i’m still losing my stock. 
i have been doing weekly water changes and continue to test my water and again everything is ok.. but not i’ve been seing this in my tank .. can someone please tell me what these are and if their bad — how can i take them out.. the image might be blurry but i’ll try to explain.. it seems like a slime build up that is slowly occupying my tank and has a air bubble attach to them, they are brown in color, slimy in texture.. can someone please help me.. thanks
Sorry for the large image but its the only way for them to be visible
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loosing all my fish need help to identify solution