How goes the battle? I was in the same boat. Tried water chiller to control temps, UV disinfection, Ozone treatment, as well as Calcium Chloride shocks and also Plant Success Soluble “Orca” as well as trying the almighty Botanicare Hydroguard. Still in the end cloning is taking to long as plants become sicker and eventually the slime will find a way to overcome everything. It’s vicious, malicious and extremely aggressive slime that even attached itself to the UV light used in one of my experiments.
You may not like it but I’m going to tell you the best way to deal with it and the only REAL solution I could come up with after many frustrating attempts and tons of science and trial and error scenarios. -->Stop using that water<-- (very hard to do, I know…)!
Find an alternate source of water, at least for your cloner machine. That means fill up at a friends in the city and yes properly treated city water with lots of chlorine works great in fact it’s amazing. After dealing with slime ridden well water it will blow your mind. The second option: Buy some water in a bottle or bottles. Specifically water marked that it was “obtained from a municipal water source” works good but anything is fine just don’t bother with distilled get municipally sourced or spring water.
The municipally sourced water is water that gets bottled from and in a city where the water that gets sent to the taps is considered good enough to be bottled and sold. Although what gets bottled and sold may not be monitored too well, that’s another story and is neither here nor there when it comes to the issue at hand. The great thing about this water goes back to my original statement that treated city water is the best water to use.
Also not knocking some of the other great suggestions out there or the guys giving them but in my many experiments with this issue I have noticed that adding air bubbles to the water only exacerbates the issue causing even more slime to grow yet even faster. Also any attempt to filter the slime will also end up creating essentially what can be more slime. The slime loves to attach to pump inlets and other plastic surfaces as one will notice. If you can catch the return water in a system in a filter sock that is suspended in the air it can aid, somewhat in the control of the slime but this is still not ideal, however, if suspended in the air after the return water pipe it can catch some of the slime and cause it to dry out in the filter sock.
Some very basic but helpful info on slimes biostel.ca/well_water_source_problems.php
I hope this helps the masses.