They look great. Rumor has it that Ich can aerosolize into another tank within 10 feet or so. I know nothing about this personally, but it's all over humblefish forum. Just might want to be careful with the QT being close to your DT.I mean it’s not exactly a hassle to have my QT next to my tank and watch these guys all day. But yeah. At the end of it not that much cheaper.