Hi
@Roediger,
Don't worry!
When something goes wrong in a planted tank it is either:
1) Unhealthy plants (and there is a plethora of issues to cause this)
2) Poor maintenance leading to 1.
So, to make plants healthy, we need:
1) Nutrients
2) Light
Nutrients = CO2 + all the other nutrients.
They get the nutrients from the substrate and/or the water column via water flowing by.
They get CO2 primarily from the water column, which is delivered by water flowing by. It is hard to get gas in water. That is why, your flow distribution needs to be bang on so the CO2 gets to all the corners - it is important.
Given a constant flow rate (like your canister filter rating), there are 2 ways to do this ...
1) concentrated and fast ... this is what you have from those outputs.
2) spread out and slow ... this would be like a spray bar or a lilly pipe which drastically reduces how fast the water "jets" out.
People make both ways work.
There are 2 ways to do nutrients:
1) respond to plants and dose nutrients "as needed" or minimally.
2) dose in excess using the EI method which "ensures" you have enough of everything in.
Light = how much energy goes into the system ... it will increase the rate at which things in the tank happen ... good and bad.
You need minimum light for plants to grow. The suggestion to reduce lighting to prevent algae is so that you can slow down the system, reduce CO2 demand on the plants (as light drives photosynthesis); this makes your weekly water changes and maintenance feel like "daily" maintenance compared to a High-high light system.
You are cleaning well.
You are dosing EI.
You have good CO2.
You have good flow.
You have enough light.
... filtration + surface agitation?
But something is still going wrong. So that means that one of those things are actually not good.
Nutrients:
Let's go with EI for now.
Read <
this>. Mix 2 solutions and dose as per the schedule that Clive suggests. You are welcome to add the booster to 1 dGh to your water change water. However, your water report will tell you what your water is. It is almost worth NOT putting in the booster, just to see how you tank fairs without it. You can always add it after. The rationale to add it is so that you just know it is there without requiring a test.
One thing that we need to know about nutrients is that if you have one immensely out of proportion, there will be an issue with uptake but we cannot say anything until we do the next step:
If it were me, I would reset the tank. To do that, I would do a massive water change maybe 2 back to back, until the TDS in the tank drops close to your tap water. Take this time to do maintenance well. You shouldn't have any issue with fish shock, provided you have been doing regular maintenance (the water won't be that different).
This <
post I made > is exactly what I would do after the massive turn over.
A pH profile requires you take a pH reading from the moment you turn on the gas every half an hour until you turn it off.
Ex:
Gas on (9:00) : 7.4
9:30: 7.0
10:00 : 6.6
10:30 6.6
11:00 : 6.4
... 6.4 every reading until gas off.
In this case, I would say we may want to turn the gas on earlier (by 1 hour) to get your pH drop to be stable from the start of your photoperiod. Let us get your data first, then we can move forward.
Temperature in your tank: if you do not have fish that require hotter water, turn it down to 72 fahrenheit.
I hope that helps. Please keep us updated.
Also, this will take time, so hang in there.
Really do need this information:
1. Size of tank.
2. Filtration.
3. Lighting and duration.
4. Substrate.
5. Co2 dosing or Non-dosing.
6. Fertilisers used + Ratios.
7. Water change regime.
8. Plant list.
9. Inhabitants.
10. Full tank shot.
Josh