I've noticed this for several days now that my 50 gallon tank seems to have a yellowish green tint to it, I dont know if its algae but i know is not tallis i took a picture and I'll share with you guys but I find the photo doesnt show what I'm seeing. It's very faint but it gets worse everyday. I'm planning on getting a phosphate test that is more accurate (because me thinking ph is phosphate but I'm not sure, please tell me if they are the same) to see if that's causing an algae bloom. If anyone else has any ideas I'd love to know. If it is algae my bushy nose pleco is in for a 24/7 buffet.