I enjoy a Pleco and i needed to know how to gain rid of adjectives his poop. and in that is allot of it surrounded by my reservoir?
Answers: You should be using a gravel siphon when you do your regular water changes. That will suck the poop and other solid waste products from the cistern. Leaving the poop, and old, uneaten food in the tank will contribute to the bio nouns on the tank and cause the water to stipulation to be changed more often. A gravel siphon will suck it right out!
Edit: you don't have to remove your fish from the tank to use a gravel vac. In certainty, you're not supposed to remove your fish. A gravel vac/siphon is the preferred method of maintenance on a fish tank. It's the best way to achieve your water change and removing the solid waste products from the container at the same time. Your fish should remain in the tank when this happen.
This will explain what it is and what it does:
http://www.firsttankguide.net/siphon.php
And this is a video guide to see how they work:
http://www.youtube.com/watch?v=Ge0m7365d...
*notice the fish are still in the tank.
Get a gravel vac:
http://e-aquarium.com.au/images/Aquarium...
...Use it. You should be using one every week, syphoning out 25% of the water besides.
