My sump has been up and running for 1 month now. What types of maintenance should i be doing? How often do i need to cleam my submersible pump? Alot of crap has ended up at the bottom of the sump. Do I try to suck that out at the next water change or leave it? Also, now my Chaeto is starting to grow, do I just let it go? It looks like some of it is starting to float around? Do I just need to add more rock to keep it down? Thanks.