Ive had this set up for about 6 months now and Ive never had a problems at all , knock on wood! !! I do weekly water changes, I have a aqua clear 30 hob
filter, have a clean up crew with hermit crabs and snails. I haven't had a algae break out since ive had this setup. Oh I use poly filter and use chemi pure elite on the hob
filter. All my chemicals are perfect. I will be upgrading to a 30 gal
eventually, but for now the 15 is doing good soo far. I also won't be getting anymore fish because yes it's just about overstocked.