I was researching ways to control algae and read up on Amano Shrimp. I was thinking these seemed like a great idea until I read the recommendation for 1-2 per gallon?! I have a 150! I can't have 75 shrimp in my tank LOL What's realistic? I also have 2 plecos and 5 clown loaches... just looking for some help with the hair-type stuff that the plecos aren't interested in.