[Suggestion] Humidity For 4x8x6.5 Foot Tent

Title. I have two plants right now (waiting to clone for a total of 6). I know once I get more, the perspiration will help raise humidity levels, however, right now without my small humidifier going I push around 35% RH. That's pretty low. I have 5x240W Quantum Boards. Two of them are not dimmed at the rest are dimmed all the way (to accommodate the new clones in a day or so). Can anyone suggest a humidifier that I don't have to add water to every 10 hours at max settings that may get me near 65%+ RH? Budget is $160 for this.
 
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