Its a corner tank-triangular shaped-350 litres.
The regulator is fine, i just ended up going with a glass diffuser, set around 4-5bps. i am using 4dkh in the drop checker.
The lights are T8, it has two units. one is 2 * 30w, and the other is 2 * 15w.
When you say trim, do you mean trim the...