uv bulb troubleshoot

Hey everyone… I’m 3 months into the hobby and so far everything was good until 3 days ago. First it started my royal gramma having ich so my LFS recommended a UV sterilizer due to all the other fish starting to show signs of ich. I installed the UV yesterday at 3pm and monitored it until 8pm -...

Ok so I own two of these. They keep throwing bulbs for no reason. I am totally sick of this brand. I’m not touching green killing machine due to reports of heavy metals leaking from their machines before. Does anytime know a UV sterilizer I can use in a biocube that will work and not cost me a...

My Aqua 57w UV system seems to have died again! I purchased the system used and had to replace the bulb already (about 4-5 months ago). The prev owner said he had already replaced the transformer as well. Does anyone know how to troubleshoot these systems to see if it is my bulb that died...