Auto change system
I have been keeping about 100 tanks now for several years. I am slowly installing an auto change system, starting with the tanks that have the greatest need, that is 4 large tanks that take 20 gallons a day each or they cloud and begin smelling, then to the 75's, 55's and 40s. I currently have about 1/2 of the tanks running on the auto change system.
I pattern the system off of a friend of mine that keeps 160 tanks and also is the supervisor of a larger research lab at a university that keeps 200 tanks. Two other friends keep tank rooms of 100 plus tanks, all using the same basic system. All of us keep rare and endangered fish, fish very sensitive to chlorine and ammonia. It is my experience and the experience of all that with less than 15% water change a day, the chlorine is not a bother. If you take your water systems chlorine readings in ppm and dilute it into 85-90 more water, you end up with a very tiny decimal of ppm for chlorine. I have my water change system adding about 5% to each tank per day, I run it twice, 2 1/2% each time, giving me a 25-30% change per week on the average tank. I run the line into a bucket for a few days while I adjust the flow in order to regulate it. You need to be in the fish room to keep an eye on the flow to see if any of the lines have plugged up.
The real worry is ammonia, most water systems will have ammonia spikes from time to time, but they don't tell anyone. I test my tap water once a week for ammonia. When it appears, I use an eye dropper and add an ammonia neutralizer to each tank once a week.
No one has ever had a problem with chlorine, with slow steady water changes, tank areation, the chlorine dissapates into the air. No problems
Here is a link to one version of the auto water change system.
I have modified it, simplified it so that my fish room looks nice and neat, but it works the same. I have done away with the valves and I use 1/2 inch drain pipe hidden. I am using a landscaping drip irrigation system to fill the tanks, along with a timer and sprinkler valves. The whole set up is very cheap and easy. I think most fish rooms are far to complex, complexity tends to fail and make large floods. Simple functions day after day.
I will sign on later and add some photos of how the auto-fill siphon system works. I just can't find them on my computer right this moment.
, 2@75 12@55
, auto water change system, all planted, endangered and extinct in the wild fish, many C.A.R.E.S list, lots and lots of angels, discus and anything challenging. Currently have many Killifish (Blue Gularis & 6 other types). My hobby is changing water.... +koi pond, planted outdoor tanks in garden.