I have Cyanobacteria In my planted tank. Someone suggested that I do a water change and manual removal today. I would prefer to not use meds. It’s heavily planted 29 gallon.
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Thanks! So just a 20% everyday and removing it manually? Also it is fully stocked and is heavily planted and lights are on for 7 hours a day. What should I reduce it to?Hi!
First of all, you need to know from where that cyanobacteria came from
The most common one is High lvl of Organic Waste & Excess light.
Than you can take the next step.
1. Reduce the Nutrient on the Water.
2. Mechanically Remove the cyanobacteria (Start From Glass > Plant > Substrate > Vacuum Substrate )
3.Do Partial 20% Water change
4. Turn Off your Light for 1-2 Day if there are no any Fishes but if it's an established Tank Than Reduce Your Light per Day.
5. When you see the Cyanobacteria is reduced do 10% Water Change Every 2 day for 1 week
6. See the result
I am not the best at dealing with this kind of bacteria
Maybe Other Member will give you best option
Good luck and keep Smiling !
So just heavy cleanings?Cyanobacteria is caused by organics in the presence of light. I have battled it twice several years ago. First you need to reduce the organics because any attempt to remove it via blackouts, antibiotics, chemicals, etc, will be temporary and it will come back if the underlying cause is not resolved.
Causes of organics are fish and feeding, along with any dying organic matter (plant leaves, fish, etc.). Have a fish load that will be biologically in balance for the tank size, do regular (once weekly) partial water changes of 60-70%, vacuum the open areas of the substrate, keep the filter clean, and have the light/nutrients in balance for the plants.
Yes. And if your tank is heavy stocked you should try reduce it to 3-4 hour/dayThanks! So just a 20% everyday and removing it manually? Also it is fully stocked and is heavily planted and lights are on for 7 hours a day. What should I reduce it to?
It doesn’t get direct sunlight. So just reduce to 4 hours for how long?Yes. And if your tank is heavy stocked you should try reduce it to 3-4 hour/day
But if you have some light coming to the tank (From Your Room light / Windows ) I said blackout for 1-2 day is the best. (No Direct Sunlight please )
Ok so what should I do step by step to get rid of this stuff?I have never recommended blackouts because this does not address the issue, namely the organics. I'll explain.
Cyanobacteria is photosynthetic, so it obviously requires light. Removing the light for any period will deprive it but the organics remain. Once the light is restored, back will come the cyanobacteria, assuming other changes have not occurred. The other blackout issue is that this will affect the plants. They may rebound after a few days, but I have never felt this justified because without dealing with the organics it is not going to solve the cyano problem.
Reducing the light intensity and/or duration is sometimes beneficial. I found in my case that the second time it came back, after I got rid of it I reduced the tank lighting by an hour and made sure no light was entering the room via windows especially in summer (this was a dedicate fish room to darkening windows was easy to manage). I also stopped the plant additives for a couple weeks. This has the effect of forcing the plants to use the naturally-occurring organics more than they might if additives are being dumped in. Once it seemd back in balance, I recommenced the plant supplements, though being careful to keep them minimal.
I guess it wasn't clear earlier, so I'll point form it.Ok so what should I do step by step to get rid of this stuff?