Posted: Tue Feb 28, 2006 11:19 am
The standard filtration for most fish is 5x the gallon size. For goldfish it is recommended at 10x. If turtles are a lot dirtier than fish, It seems 3 times would be pushing it. Most filtrartion guidelines on a filter box far exceed a 3 time limit. Example, looking on ebay, a small 15 gallon hydor still pumps water at 158 gph, that is over the 10x right there. Even a cheaper tetra whisper for a 10 gallon does 125 GPH. To slow the water flow, just head it towards the wall, rocks, etc. That breaks the current very well.
I have 2 powerheads hooked to filter systems in my 30 gallon bubble eye tank and each powerhead does up to 400gph. But a lot of people do not realize that tubing, etc will greatly diminish the output of what a filter really does.
If you do not have a python, a drain fill kit for a waterbed is basically the same thing without the gravel cleaner attachment on one end...and costs about $6.
For a small tank like a 10 or 20 gallon, I would just use a large cup or small pitcher, scoop, fill a 5 gallon and dump. Then fill a clean 5 gallon with fresh, and scoop into the tank with a half gallon jug. It will not take long at all.
I have a kitchen sink with a spray nozel so those hookups do not work for me either. For my 30 -40 gal, I will either use a half gallon jug and scoop into a 5 gallon bucket, or into the sink for the tank in the kitchen. Or use the gravel cleaner and fill a 5 gallon half way and dump Then fill the same way.