size of sump
as you have said adding tower has changed stress points on glass
more weight on one end can affect compression on the poly
100mm maybe better
i have just ordered 2 jebao WP40's
hopefully be able to use the sunsun's they replace on other tanks
the sunsuns are still going after 4 years
magnetic base is the go
changed tanks around a bit
some temperate some tropical
finally plumbed last 2 tanks in, had a couple of leakers so spent time taking tanks apart and re assembling
clowns and aiptasia farm
F2 bangaii pair and ocellaris female
some native algae