Dont try this at home!

[AJinNY]

Well today I got around to doing a water change. I probably went a little longer than I should have so I thought it would be a nice treat for the fish if I took out 20% of the water instead of the usual 10%.

Well when I took out the water.....on the right side of my tank, the live rock was hitting the air since I took so much water out. I guess since it wasnt totally submerged in the water that it threw off the weight equilibrium and all the rocks came tumbling down. Like I dont have enough headaches with this rock arrangement.

Anyway, I dont know if this happened to anyone else before, but just in case, be careful when doing a larger than normal water change.

PS Is there any danger to the fish or the tank dynamics by taking out TOO much water and replacing it all at one time?

Thanks.

Alan

[RanRoc]

It's happened to the best of us! Shoot, my rocks fall even when not doing a water change. I wouldn't do more that 50% water change at a time, unless there is some serious water pollution going on. I would recommend 20% every water change, if feasible, just make sure the new water matches the parameters of the tank's water (i.e. pH, temp).
-RY