hi all, I have a newer 2 head torch that was open very well the first week or so I had it but since then one of the heads has barely been out and the other is like half extended. I noticed the body has these dark marks on it that I don't remember it having when I got it but cant say for sure. parameters are calc 459, dkh 10.8(recently switched from red sea black to blue bucket so its slowly coming down), mag is 1250, ph is 8.2 to 8.3, and salinity is 1.026. Nitrate and phos are very low due to a skimmer and a fuge but ive been trying to get them up. lights are ai prime/t5 4 bulb hybrid but I don't have par numbers. moderate flow over the top of them. there's another torch and some hammers that are doing very well as well as a goni.