Aquatic Plant Forum banner
1 - 1 of 1 Posts

· Banned
2,072 Posts
When you take your measurement is important. pH wil change with time of day in a non CO2 tank just like it does in shallow lakes full of plants.
These lakjes vary from pH's of 5-6 to 8-10, some moving 4 units from 6 am to 4 pm. Tide pools change 2 full units in 4-6 hours.

You have non CO2 tanks, get use to it.
If you believe this makes a difference(the pH and your fish), then you can try CO2 methods. I personally have never seen evidence to suggest it does make a difference(pH by it self due to plant removal of CO2). Fish live where there are large changes.
Most substrates will buffer to neutral.

If you have the substrate set up like this and plan on non CO2, then leave it alone, do not do water changes. Add water for evaporation only.
Add some E najas etc some bicarb user and they will remove the GH/KH for you through biomass clippings.

So over time your GH/KH will drop way down.

You just feed a balanced fish load well daily and leave the tank alone.

Rather a pH, the hardness and O2 levels are more important for fish. pH byself alone has little meaning. See other thread about a KH of zero in Fertilization.

Tom Barr
1 - 1 of 1 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.