blob

For the second time in the last couple weeks I’ve found a blob of clear slimy stuff in my frogfish tank. There’s also a painter grouper in there. Does anyone have any idea what it is?

I have no idea what this is but it wasn't there yesterday. It looks like a giant egg sack but I only have 5 turbo snails and 10 hermit crabs in here, all accounted for. Salinity 1.025 Ph 8.2 Temp 78 Ammonia 0 Nitrite 0 Nitrate 10 I will try to add a better picture it's in the back of my tank. I...