also yes the 10 gal is bare bottom ill send pics if u want of the 29 gal
The 10 gall is cycled because I used seeded filter media and it measures 0 ammonia and 0 nitrite and nitrate is always below 40. I didn't mean to put kh is 10 after 24 hours it stays at 5 my bad. I use eco complete which Is inert and I don't put any chemicals to change water. The crypt is growing new leaves so its doing good and the guppies are breeding. The neon tetras got sick because I got a sick one at petsmart.
that's not the problem I'm fine with ph of 8 and kh of 5 but the problem is the kh and ph decreases so fast in the tank in the span of days. The neons are good they've been raised in local water because my LFS keeps them in tap water as well.
I am glad it stays at 5
Is the 1 crypt giant? If you are not co2 injected, I wonder (and maybe someone can weigh in here) if the crypt is utilizing your carbonates as a co2 source.
To drop a couple KH in a few days is large.
However, let's say that your each drop of your test kit has a 10 PPM change on the color for KH.
If you are testing in at 5dkh, that is about 80 ppm ... so it's possible that you are maybe triggering the color change at 72 ppm (even though it reas 80) ... and so when you test in a few days and you at at 3dkh, you are at about 50 ppm ... it may actually be that you are actually 50 (provided both of the test tubes were filled to the 5mL mark identically - we are humans) ... even a mL difference could skew your test.
So the dKH difference may only be 1 ... and I wouldn't be worried about that.
If the plant is healthy, the fish are breeding, and the large concern is understanding why the test is yielding bizarre data, then we can look at the test itself - because the system is healthy.
Note that I simplified the ppm numbers to "about" to go along with the 10 ppm increment. Each degree is 17.8 ppm.