Today I discovered a large mark on one of my tiger barbs. I'm connecting it to my small BN Pleco, whom I've decided to rehome. Curious if Kuhli Loaches would be an adequate replacement as a bottom feeder/scavanger. Only other scavangers I have are 6 Green Corys. Tank size is 55usG, temp at 80. Just want something that wont harm my other fish, and look cool in the process. I'd have chosen Clown Loaches if it wasn't for their size. Otherwise, open to any suggestions to any scavanger that would do well in my tank. Other fish I have are 4 German Blue Rams, 8 Bloodfin Tetras, 3 Pearl Gouramis and 10 Tiger Barbs. Also curious, if Kuhli Loaches are a good choice, how many would be suitable? Thanks in advance!