Hi, Very tiny black eggs on aquarium glass. Who did it? I have: Rummynose Tetras WCMM Gold and Regular Ember Tetra Black Skirt Tetra Cardinal and Neon Tetra Silver Tip Tetra 2 Striped Loach 3 Kuhli Loach Which is the guilty party? ...lol. Also can they be scraped off tank glass into breeder tank without destroying the eggs?