Ph in a hydro tub

Hey. I am fairly new to hydroponics. I have a 10 gallon tub with 4 plants growing in it.

I have an aquarium pump and a 4 or 5 inch airstone on the bottom. It seems to be working well.

The only thing is I check the PH about everyday and it always goes up. Should I have to regulate the ph daily? I am not feeding them nutes or anything. I put a little bit of superthrive in it but hardly any (which i probably shouldnt have) but how is the ph continuously changing?

Yep. With hydro you should check at least daily. I have had to go away on business and left for 3-4 days and havent had any problems. But that isnt exactly good for the plants or anything. My PH normally raises from 5.7 to about 6.0-6.2 in 24 hours. Unless I flush system with clearex and then let plain water run in system for a couple days. I do this every now and then to get rid of built up salts. But after doing this and Im running just water my PH will normally sky rocket for the first 2 days and then it will level out. Im not sure if this signifys that the build up has disapated or what. But thats when I start with my nutes again. But back to the point at hand yes its normal for the PH to fluctuate. Also Im not sure how old your plants are but I dont add nutes for the first couple weeks. And I dont know if Superthrive actuallt does anything or not. Alot of people believe its a God send but I dont really notice a difference. I have used it and it hasnt caused any problems though. I use Botanicare Pure blend. I find it that plants can tolerate screw ups more with it. Screw ups being putting too much in. Also do you have a TDS tester? Not 100% needed but makes life easier. Just start off the nutes VERY LOW. Sorry to keep going on I just drank some of my specialty tea and Im starting to feel it. If ya have anymore questions feel free

god my ph is fluctuates insanely at night it sucks, my last grow at a house in a basement it never fluctuated but now in this dam apartment it raises so much. So hmm what actually makes it fluctuate??

Thanks everyone. It helps to have someone to talk to about this stuff. I use General Hydroponics Dry Concentrate PH up and down. How often do you usually change the reservoir? And how do you think i should go about doing it with a ten gallon bucket like i have? Drag to the shower i assume would probably be the best, but i cant imagine it fumbling over and ten gallons swimming through my apartment., haha

and hey 2cimdma youll have to wisen me with your tea ideas. I had the flu last week and couldnt smoke so i tried making tea but it didnt end up working. : /

Alright thanks for the help

Peace and love

General rule is change res every 10-14 days. I empty my reverviors out the window, down the bath. If your scared of misshaps get a pump and tubing. Stick the pump in the res and run tubing to your sink or shower.

The tea I drink is poppy tea(opium tea). Just follow the link to my poppy grow journal. I have step by step instructions with pictures for poppy tea. Good stuff in moderation