Okay so I decided to take the breeding pair from the 100g and make them their own tank, I Call it the love shack lol
I took the water from the 100g and I'm using the same plants from the other tank, along with a Rock on the side. They don't seem to untreated in eachother anymore but I'm going to have to wait to see what happens.
I'm thinking that they were eating the eggs because they felt threatened by the other fish in the 100g. So I put them in their own stress free tank.
I just hope they spawn successfully this time