hi me again im slowly getting there more light bulbs are here just waiting on ballasts, brought pump off e bay then was told of a cheaper one aint it always the way lid built just needs painting. ei dosing but halfed the dose to does every day easier to remember im guessing shouldn't cause any problems. power head added 2200 lph second small filter added fluvel 205 to aid water movement and polish water.so now i was thinking about putting a t splitter on my co2 line running one end in a retractor in the sump and sticking the other in the fluvle in take as i dont want to have to convince my wife i need to buy all the co2 kit again and every one with large tank seems to use 2 co2 tanks has any one tried this my main concern was plastic failure but i have never seen co2 splitters