sadly the DIY route is getting too much for me.
I bought a sealant, which i then opened up and it told me it was all sorts of poisonous (even to breathe, and that in california, it's ingredients were known to cause heart failure and cancer). so yeah...rather than go back and go on and on and on, i'm a DIY drop out.
if it's not one thing, it's the other, and sadly i don't have time to keep fixing something, to then have a subpar set up. it comes down to not enough time, and then wanting to spend that time i DO get on it, productively, rather than chasing up 15 new things to get every time something goes wrong.
i'm looking into the fluval or potentially paintball style.
good luck with your attempts!