Loach_Lad_77

Thanks for the insight. We don't feed bbs, however

Hello all, before I get to question, background on our tank: we have a 15 gallon planted community tank that's been around for about 6 months. Currently has 4 otos, 2 female guppies, 5 kuhli loaches, ~8 shrimp, one dwarf guorami, and one mystery snail. It's been mostly stable but lately we've had some issues... 2 out of 3 otos died (replaced now) and 2 guppies died (not replaced yet) and we still don't know why. Currently one of our Trying to figure it out. Using API kit, all parameters are within normal limits... still working on it. However, my question for this thread (which may be related to our overall issues?) is: what are these little white hair-like things on the side of our tank? We've noticed them lately and can't figure it out on here/reddit/google. We also have a good amount of algae on our plants, and have had a hard time figuring out why. Are the "hairs" related to the overall algae in the tank? Really appreciate any advice - happy to clarify anything (apologies for bad pics - hard to capture side of tank)