My normal water change regime on my tanks is about 35-50% water change once every week to nine days or so. This change is either broken up in two small changes or done at once as one large. I also add a gallon or two of fresh conditioned water every two to three days due to evaporation, though at this time, I remove no water. The large change I do with a gravel siphon. I use the siphon every time I do a major water change.
Most of the time, with regards to fishkeeping alone, it is recommended not to change such large volumes of water in one go, but to break them up into two smaller water changes instead of one large. I did this mostly when the tanks were newly set-up, but now all three are well-cycled, and I am leaning more towards one change per week. Now that I'm reading up on planted tanks, a large 50% change is stressed to reset the tank's conditions. If I were to do any more than this, in the form of 25% change ever four or five days, I'm thinking it could get expensive to re-dose every time, as I am using Flourish
and Flourish Excel
. Some of the dosages recommend a larger volume if a water change has been done. Would this be necessary with such a small change?
I am not one of those people who wants to skimp on water changes. I have no fear of doing them, but rather I have a fear of not doing them. I am a working Mom with a young daughter, and sometimes, life gets in the way. I am planning on stepping up my fertilization process even more, by adding some of the other trace and essential elements, one at a time as I collect them. I will be using the Seachem
line unitl I can get a good supply of dry fertilizers. I have also yet to remove the carbon from my filters, but I will do so once I can find an alternative material for my HOB filters. I will be using the Excel
until I can get a good CO2 reactor.
I guess my question stems from the fact that it seems the "rules" for fish and plant keeping sometimes seem to run counter to one another. How does one deal with these discrepancies? How detrimental would it be if a water change did not get done? If I were to do the smaller water changes recommended in fish keeping, how much would this change the effectiveness of the fertilizers? I would like to settle on one method and continue with this consistently. I did read another thread that explained that Excel
dissipates in 24 hours or so, with or without a water change. This helped to put my mind at ease that I won't be killing my fish if I happen to get busy. But what about the other fertilizers? If you can make sense of what I'm saying and offer up some advice,(I'm confused myself)
or recommend links for further reading on this subject, I would be grateful. Thanks very much...