so i bought some NLS grow formula thats .5mm. the food is so small that my cichlids dont even see it most of the time. I dont release my pinch until im under the surface so it sinks, and usually the food falls straight down and either lands on the gravel for later consumption or falls too far down. any ideas on what to do. my cichlids are all under 3 inches and they pick at the gravel. Too late to return as ive opened it.