I am relatively new to keeping fish. I have a 10 gallon tank with 3 tetra skirts, 3 guppies and a snail. I have had this tank for about 6 months now with no problems with anything. I recently was out of town for a week and when I got home I found one of my guppies dead and the water cloudy. Upon further inspection the guppies fins and tail were gone and that's when I noticed something was growing on my tank wall. I poked it with my fish net and it is hard and not squishy. I'm not sure what it is. Is it fish eggs?
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