Hello everyone...I need some help with the ph levels of my tank. My tank is a 45 gallon tank with 1 bala shark (being moved in a few weeks to a 75), 2 bleeding heart tetras, 1 betta and a small leopard pleco.
Im in the 2 week of the cycling process as I had to move the fish from my 3 year old established tank due to an emergency. I had added over 40 percent of the established water, a established filter/cartridge, gravel and decorations. I've got the new filter system and the old established running on the tank and the water is consistently at 78 degrees.
So the ammonium is at 0.0, the nitrites are 0.0 but what is troubling me is the fluctations in the ph. The last two mornings my ph has been 6.6-6.8 and in the evening 7.4 and today I went to the local fish store where I've been getting some good advice from the owner and my ph was 7.6 and then I tested it about 20 minutes ago and it was 7.8!
The fish store man said to take all the plants/decorations, samples of the gravels, tap water and tank water and do all individual tests on them to see what is causing the problem. I did a 20% water change yesterday morning. I just don't understand what it causing it to rise so dramatically in less then 12 hours. I haven't added anything new to the tank since set up and I lightly feed the fish flake food this morning.
I have a bottle of ph adjust and I don't know if I should use it, or do a water change. I've heard adding extra prime could help?
Thanks in advance for any advice.