Originally Posted by rnsheehan21
after talking with some of the guys at work i am really beginning to question this idea of water changes being necessary.....that is if you tank is planted........
if you don't have LIVE plants then yes you better change out that water.......but let me reiterate... if your tank is planted i think that water changes are optional.....
why do i say this? because my last tank i had i went 1.5 years with out a water change....my fish, all cichlids, and one chinese algae eater survived ....tank before that, of 3 years of various tetras, same result......these tanks were planted with various swords ......so i just wanted to get some feedback see what others have experienced and to see if others have even tried not doing water changes for awhile......because for some of us who are not as lucky to have neutral soft tap water ....its a pain ...more like a chemistry project then a simple water change....anyway hope this sparks some debate and if you have any questions for me please ask
You would need heavily planted tank (not a few swords), and a balanced fish load that would not produce more organic waste than the plant mass could consume.
Over time,the buffering capacity that water holds would need to be replenished with GH booster (Calcium, magnesium), or plant's would begin to suffer and fish,, depending on species,,would also feel the effects.
Heavily planted aquariums that receive few water changes are possible with afore mentioned balanced fish load in proportion to plant mass.(Is a fine balance)
Heavily planted tank in my view, as well as other's is a tank with no more than fifteen percent of the bottom NOT planted.
Those who run such heavily planted tanks with few water changes, often admit that with increased numbers of fishes,, water changes are needed for fishes health.(too many fishes for plant uptake of organics )
Those who don't admit this.. Are only interested in plant growth near as I could tell,and fishes are almost afterthought, They will tell you that fishes will, as you say.. survive but then goldfish and bettas often survive poor care for some time before dying. What value do you place on fishes?