Update 1/28/06
The seven dwarfs are all doing well. I had one little guy swim into the uptake and get stuck in the gauze I use in it for my filter. I spotted him quickly and freed him and he is doing well after a short period of stress.
I did my monthly maintenace today and want to share it cause a few people have pm'd me about setting up a pico. I love the tank, but the maintenance is very time consuming and for those that have not had one, you should know that if you do not stay on top of it, I think you wil have a crash on your hands. Anyway, to start with, I have a hob overflow tiny fuge. I put a piece of rolled up gauze in my intake to slow down the pull and for filtration. I change out the gauze every day. I have found that this is a very important step in keeping the tank parameters stable. You can get a package of gauze from your veterinarian for next to nothing, or you can try some other material for this purpose, this is just what I use. It is clean and cheap and does not tear up pony fins if they swim by it. I found that the pantyhose would snag the fins and hurt the ponies, so do not use it any more.
Once a week I take the gauze out and let the pump work at full capacity for about thirty minutes. This circulates the water and stirs up detritus and pulls it into the fuge. I sit with a brineshrimp net under the return and filter the water as it returns to the tank. This removes lots of stuff. You can use a filter sock tied to the return to do the same thing, but I figure, I have to watch the tank during this time anyway to make sure no ponies swim too close to the intake and get sucked in. They are really not very smart at all. After the filtering, I usually remove about 25 ounces of tank water and discard and replace with water from my 180 reef tank. You can also just use freshly mixed salt water for the changes, but I like knowing that the water is a little more stable when adding to the small tank.
Once a month I do fresh water dips on all my ponies as described in Alice Abbotts book and recommended by seahorsesorce in Florida. He fees like there is always a source for parasites with live brine shrimp feeding and wants to make sure that he is keeping his ponies parasite free. The first fresh water dip I did about gave me a stroke as I was sure I was killing my guys. I still worry, but have not lost one yet. The main factor in a safe dip is temperature. You are only dipping for about 3-4 minutes, so ph does not seem to be a factor.
Anyway, at the same time as I do my freshwater dip, I remove all the plants(macro) to a bowl of saltwater and inspect, clean and remove any poor specimens. I do another major filtration of the tank water using a cup to pour it through my brineshrimp net while stirring up as much detritus and stuff as possible. I scrape all glass and keep the pump working with a piece of gauze to filter the algea out of the water.
I continue working after the ponies are back in the tank. I had to use three pieces of gauze today to really clean the water. The ponies do not seem to mind all the comotion, they just hitch to something and sit there. I am usually scraping glass after they are back from their fresh water dips. They are usually a little stressed for 15-20 minutes after the dip, but they return to normal quite fast.
During my cleaning, I try not to stir the sand up any more than neccessary, but I do want to get the detritus out of the top layer. Since I am using fine black sand, it is easy to see when it is clean. Again, I do frequent water changes, and a heavy cleaning is always a good time to replace a large amount of water, just incase any bad stuff is released from the sand into the water column. I always do the water change last, to help as much as possible. This morning, my heavy cleaning took about two hours. I just kept the coffee cup full and had fun.
I know this is lots of info that many on this board already know or do or do not care about. I just felt like that if anyone was considering a pico, they should understand the maintenance issues involved and make sure that they are up for the challenge. Having a large stable reef to take water from has kept me from worrying as much about such a small tank, I do not think I would want to try this without it.
So now you know how I spend my saturday mornings. And this is just the pico. We will save the 180 maintenance for another time.
Jen