Whats spiking my pH?
So, I set this new 2.5 tank up on Sunday and put the betta in (he is moving to a 5g when he gets bigger) on Tuesday, taking about 2 hours for acclimation. The first day was not good. I made some rookie mistakes, like not shutting off the lights for 24 hours.
Now, I tested the water when I put him in, and tested the tap water before I added that to the tank. I'm on a well near a limestone bed, so my well water is actually PERFECT for most fish.
Today he just wasn't acting right, so I tested the water and the PH was somewhere around 9. I immediately tested my tap water, and it was fine.
I went and bought some RO water at the local shop and did a 50% water change at 7PM, and added 4 drops of stress coat just for good measure. I plan on doing another change at 8:30PM.
He's already acting normal again. He's playing in the airstone right now and playing in the hornwart (which he loves to do - he likes to swim into the current and let it push him into the hornwart where he just lays for a moment before doing it again)
What I'm trying to figure out is how it spiked in the first place. Here's an enumerated list of everything in the tank:
2-2.5 inches of red flint sand
.5-1 inch of Pure Water Pebbles black freshwater substrate (which looks great over the flint)
3 small chunks of dragon stone (AKA Ohko Stone) added this morning, with some java moss anchored to it
2 bunches of hornwart
White airstone with a silicone tube
And currently that's it. I'm going to add the heater again if the temperature dips below 74, but I turned the furnace in my house up by 3 degrees and that seems to be doing the trick.
Any ideas what caused the spike?
=LIC= (Large Inverts Club)