Kombu vs. Nori for feeding urchins (and others?)

[SFREEF3R]

Anyone else use Kombu to feed anything in their tank?

I have a large urchin in a small tank so I periodically supplement with dried algae. My urchins eats/moves very slowly and I find that Nori will disintegrate by the time they get to it.

Kombu, dried kelp, is much thicker and will not disintegrate. I can leave a piece in overnight and and whatever isn't consumed I just remove from the tank.

 

[blaxsun]

I have not - just seaweed (TLF SeaVeggies). The pair of urchins I have could seem to care less about it though as they're busy scavenging everything else in sight...

 

[BZOFIQ]

I could see this being a thing in an alga-less tank but people usually buy urchins when they have plenty of algae for these guys. Feeding them anything else kills their intended purpose unless your tank has been cleaned to a point where you suspect they are starving.

 

[SFREEF3R]

Mine has to be in the mood - when I see it up at the top of the glass I'll tack some on nearby. It usually eats a bit and then moves on (like above images). Sometimes though it just rolls right over.

 

[SFREEF3R]

I could see this being a thing in an alga-less tank but people usually buy urchins when they have plenty of algae for these guys. Feeding them anything else kind their intended purpose unless your tank has been cleaned to a point where you suspect they are starving.

My tank is very small so I do think there is a risk of it not getting enough to eat. My largest started as a tiny hitchhiker but is now about the size of a tennis ball.