thats exactly what i want, i simple sump.
it's an old 10 gal
tank i had laying around. my chaeto is growing and seems to be happy, i leave my light on the sump 24/7. I was going to open the wall up too so i can display the sump as well. then i came to my senses and scrapped that idea, lol
the only things in my tank now are 1 emerald crab, 8 turbo snails, 3 bumble bee snails. i don't want to add anything till i'm happy with the tank chemestry.
here is my sump
from right to left, overflow drops into first chamber, i have heater, carbon, chemi-pure, phospage sponge.
middle is refugium, some LR
and a ball of chaeto, then bubble wall into the return chamber.
The return chamber has the pump and the float switch to kill the pump if water ever runs low due to clogged overflow.
if i do add my skimmer, it will be on the small portion on the right side. so all the microbubbles stay to the right of the phospate pad.