Hi all. This is my first post here and im very new with keeping fish! I've had a 20 gallon tank set up for about a month and a half now, its cycled and everything. I had 5 guppies and wanted an algae eater when I went to get more guppies and was shown an albino pleco so I got him and 3 more guppies. I now have 8 guppies and the albino bristlenose pleco but I've been doing research after getting him (like I said I'm new to keeping fish and trusted the person selling him so I didn't think to research them beforehand) and now I'm worried my tank is going to be too crowded/have too much waste. The person I talked to when buying the pleco told me he'd be great for helping keep my tank clean and I thought he looked so so cool but now I've read about how they add a lot of waste to the tank. If I keep up on my weekly 10% water changes will that be enough? Or is my tank gonna get gross fast? The guppies all have enough room so I'm not worried about that but I am worried about the water quality now. Any advice would be so greatly appreciated!!!