I have a pair of Marble Angles that have laid eggs on my amazon sword at least 5 times now. They are in a 30 gallon community tank with 3 Swords, 4 Tiger Barbs, 1 Pleco, 2 Cory cats, 2 Clown Loaches, and 2 Golden Rams. I remove the tiger barbs when they lay their eggs. The eggs have turned white...