Sump crabs - who's the best?

[ThunderGoose]

In my sump I have a red mitrax crab and two hermit crabs (different areas). I was hand feeding them fresh scallop meat this morning and I noticed a big difference between the types.

The mitrax acted like my hand was a predator and attacked and pinched me. Then moved off into another part of the sump. Leaving breakfast behind.

The hermits come running when they sense my hand. They will literally lay on their backs in order to better take the food from my hand. *Who's a good crabby wabby?* They've learned who I am and that I'm the bearer of food.

Hermits: 1
Mitrax crab: 0

 

[jsker]

LOL, I am trying a Emerald milthrax to clean up algae in my sump. What I was reading is the milthrax thrives on algae and like it in small bits. I did not read if they like meaty food or not.

 

[TinyChocobo]

I've been doing my best to keep algae out of my sump - as far as running an external reactor in another part of my stand with a cover around it to keep light out of my sump. The goal with the reactor is to balance PH, give copepods somewhere to grow/spawn, as well as hopefully to help out-compete nuisance algae.

Even with little to no light - will I still get algae in the sump do you think?

I don't have any crabs in mine - but that's an interesting solution :). I read on here that somebody has a stone crab in their sump :P.

 

[ArowanaLover1902]

Porcelain crabs are awesome, you'll almost never see them in the display but in a fuge or sump you'll be able to see them fanning for food