Scavenging in a cold water tank

[Cadavillac]

I need a critter that will eat algae/scavenge for leftovers in my cold water tank. Algae isn't as big a concern as uneaten bits of food on the substrate. What would be the best route? A couple of mystery snails maybe?

[travie]

I'm not sure of a good scavenger for a cold water tank. But feeding less at feeding time would be the cheapest route to eliminate the excess food on the bottom.

[Rue]

Mystery snails won't do well in cold water.

My dojo loaches are great! Cold-water ...clean up after the goldies nicely...

[Fishguy2727]

What size tank?
Goldfish?
How many?
What size?

[cocoa_pleco]

i need to know tank size, but usually weather loaches are good

[houie925]

crawdad if the fish aren't too small. trapdoor snails might work too

[hamsterman]

ghost shrimp can handle some lower temps also, and are great scavengers