It's been 18 days since my 55 gal
began cycling. My PH
started at 8.2 on day one as of today it was at 7.34, yesterday at 7.74. I've using a Tetra test kit but most recently have been using a more sophisticated PH
meter. I'm getting similar readings on both. My question is, how low can the PH
get during the cycle ? Any suggestions ?
Readings as of yesterday were
Nh4 0 (peaked on day 10, started the cycle with a raw shrimp)
<.3 (peaked 5 days ago and has been decreasing)
4" Southdown DSB
topped with 15 pounds of LS
20 pound LR
2 X 96 PC
running about 5 hrs daily
One modified Skilter running all the time.
I'm using RO
water and Instant Ocean reef crystals
Have added 10+ gallons of top off RO
Thanks for your inputs.