Thanks Tom,
I'll have a good read through this tonight.
Who knows, maybe I won't have any questions
Brian.
515L tank running on a 90L sump, CO2, 3 70w 5200k MHs, Aqua Medic Volcanit substrate, EI ferts
Juwel Trigon 190L corner tank, Dennerle Deponit substrate, 70w 5200k MH, planted, CO2 & EI ferts.
45L & 70L tanks, non- CO2, EI 'light' using Excel