I'm new to the forum, I have recently become interested in having a wicked planted tank, so I have set up a basic 3ft plant tank, that was originally a standard tropical tank.
Now I am having a few issues with some products that I have used in the tank(which came dam close to killing my fish).
I guess I should start from the beginning....so I have a standard 3ft tank, I am running a Fluval 304 for filtration and a old heater plus an undergravel heater, 2 double T5 reflectors with high output tubes, I was running a basic Red Sea CO2 unit, but for now I have taken it off for the time being.
So after a couple of weeks after adding the undergravel heater, T5 lights, CO2, the plants I had in there took off
it was awesome!
I made sure that the Ph/Kh/Gh was balanced and it was set to a slightly acidic Ph, also the lights are on for 11 hours a day....so after a period of time I start to get some algae problems, I traced it down to the Kh powder I was using contained Phosphates and there was Phosphates coming through the tap water too, so....I tried Seachem Alkaline Buffer and Acidic Buffer, they state that they don't contain phosphates.....well I used the ratio on the bottle to achieve a Ph of 6.5, it tested this in my tank after adding it to the water.
Well after half an hour my fish were gasping at the surface
so I straight away tested everything, Ph was fine, Gh was fine and so was everything else except for the Kh....that tested at 8dKH which was much higher than it had ever tested before, so I added some tap water which is very low in KH that seemed to help alot. My water has been really cloudy since I used these products also...
So that was a few days ago, tonight I tested the Ph and it was reading 7.8 way, way too high for acidic loving tetras...so I had to forcibly lower the ph down to 7.0 using ph down powder, I am going to lower it again tomorrow to around 6.8....I have lost a few fish from this so I just want my tank to be stable again
So after this dramatic post, I would like to know is there a Kh powder that does not contain Phosphates other than Seachem Acidic/Alkaline buffer?
Or should I just keep using the Kh powder I was using in the first place....