I would go with around a 5 man. What lights are you using, they look stretched? You may want to move those blurples to over the plants. I would also switch whatever nutes you are using. Boiling them, adding snow, it seems very odd. Get some GH Trio or some other nutes you can just mix and go. Than you won't have to worry about boiling and adding snow. Who knows what boiling the stuff could be doing to it. In the end we have all seen much worse. Your plants don't look great but for a first time be proud. Clearly you made some mistakes due to your lack of experience but most people if not all people do. Growing is a learning experience and takes time. Be glad they are still alive, that's one up on many people's first attempt.
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