Bacterial bloom maybe. Is it stocked? pH just doesn't drop. What's your tap water parameters?
Have you done any major moving of decor,gravel vac etc ?
Can you get a pic?
Also what's your filtration?
It is stocked.. 12 tropical community fish and 2 red claw crabs
I'm sorry I don't know what tap water parameter means..
I do a gravel vac every week when removing 10% of the water and 25% monthly.
It's a top fin 75 gallon power filter which had an orange slime covering the chemical filter bags, I cleaned the filter and replaced the bags two days ago.
From the new API test kit these are my results..
Ph 6
Nitrite .5 ppm
Nitrate 0 ppm
Ammonia is off the chart has to be over 8 ppm
I attached the pic.. All the fish seem to be at the top of the tank now swimming.
Thanks for your help con.. I'm pretty new to this, I appreciate it.
Thanks,
Ryan