I'm looking into getting some cherry shrimp (1 or 2) to cleanup the Algae in my 29 Gallon Tank, I have a snail and an Algae Eater and two red-tailed sharks, I co nsider them as algae eaters because the swim up the glass of my tank eating something my guess is they are eating algae. Any I have 2 clown loaches in there too, would they be a threat to the shrimp. I also have a Dragon Fish in there too, would it be a threat?