Tiger conch feeding

[ScuttleBug]

Bought some tiger conchs to clean my sand. Well they have been absolutely awesome. Didn't expect them to also clean all my GHA from my rocks but they wiped it out wherever they can reach. Now most of the algae is gone and I don't want them to starve so I put nori out for them, but the new growth edge on the shells seems a bit thinner than the old growth. Is this normal and will it thicken as it grows or do I need to feed something with higher calcium? If so any recommendations?

 

[blaxsun]

I place Two Little SeaVeggies rubberbanded to a small flat rock and I see them snarfing it down every now and again. Most of the the time they're actively cruising the substrate (on and below) for their next meal.

 

[KMCA]

Bought some tiger conchs to clean my sand. Well they have been absolutely awesome. Didn't expect them to also clean all my GHA from my rocks but they wiped it out wherever they can reach. Now most of the algae is gone and I don't want them to starve so I put nori out for them, but the new growth edge on the shells seems a bit thinner than the old growth. Is this normal and will it thicken as it grows or do I need to feed something with higher calcium? If so any recommendations?

I had mine eat almost a month of algae growth in my tank in a matter of days. They're surprisingly insatiable, aren't they?
I'm curious on how much they actually need to eat as opposed to how much they want to eat.