Eshopps....I need some help deciphering your refugium products. I tried your website, but was warned about malware! I need a midsize refugium like your R-200 / 15005, but I am confused by your first and second generation models. I can not seem to find anywhere the size of the refugium section in the first generation model ( I do not need the space for the skimmer as in the second gen model. And is the first gen model still readily available? Can you help? Is there a way to contact you?