II. Materials: (20) Tank, water, gravel, colleseum toy, plant, fake plant, shell toy, rock, swordtail fish, albino corycatfish (2), Molly fish, filter, bacteria supplement, albino catfish, bubbler, fish food, turtle toy, pipette, scrubber, sifter, pitcher
III. Procedure:
1. Clean the empty fish tank with scrubber.
2. Clean gravel with sifter.
3. Clean until water is clear.
4. Place the cleanly rinsed gravel in tank.
5. Using a pitcher, fill tank with new water.
6. Pick and clean toys thoroughly.
7. Place clean toys in desired area of tank.
8. Repeat steps 6&7 using fake plants.
9. Using nitrite and ammonia test, test water until they match the safe colors.
10. Repeat testing until colors match the chart.
11. Add bubbler to tank
12. Add filter. (Repeat steps 6&7)
13. Buy desired fish at local pet store, look at the size tank they need, who they get along with and what they eat.
14. Soon after purchase, bring fish to tank.
15. Place fish (inside bag from pet store) in the water for 10 minutes to let them adjust to the temperature.
16. After 10 minutes get a fish net, and remove the bags from the water.
17. Cut small (big enough for fish to get out) hole in the corner of the plastic bags.
IV. Data:
B: Qualitative (observations)
Day 1-
•Picked out a tank today!
•empty gravel and cleaned it in water
•scrubbed the tank's walls and floor
•didn't get to completely finish
Day 2-
•finished the last minute cleaning duties
•picked out plants for aquarium
•picked out toys for aquarium
Day 3-
•filled up our tank with water
•added a filter
•put de-chlorinator in the water
•going to get our fishies tomorrow!!!
Day 4-
•picked out all of our fish!!
•placed them in our tank to get them adjusted to the water before taking them out of their plastic bags
•took the fish out of their bags after about 10 minutes
•fish seemed to love the tank! :)
Day 5-
•fish seem to be liking the tank
•one of my fish, Laverne, has already left us :( rest in peace.
•doesn't seem to be much conflict between the fish. Yay!
Day 6-
•added bacopia to our tank
•water quality levels are average
Day 7-
•fish seem to be doing just fine
•ammonia level is higher than usual…
•emptied then refilled some water to see if that would help
•added daily bacteria supplement
Day 8-
Day 9-
Day 10-
•Picked out a tank today!
•empty gravel and cleaned it in water
•scrubbed the tank's walls and floor
•didn't get to completely finish
Day 2-
•finished the last minute cleaning duties
•picked out plants for aquarium
•picked out toys for aquarium
Day 3-
•filled up our tank with water
•added a filter
•put de-chlorinator in the water
•going to get our fishies tomorrow!!!
Day 4-
•picked out all of our fish!!
•placed them in our tank to get them adjusted to the water before taking them out of their plastic bags
•took the fish out of their bags after about 10 minutes
•fish seemed to love the tank! :)
Day 5-
•fish seem to be liking the tank
•one of my fish, Laverne, has already left us :( rest in peace.
•doesn't seem to be much conflict between the fish. Yay!
Day 6-
•added bacopia to our tank
•water quality levels are average
Day 7-
•fish seem to be doing just fine
•ammonia level is higher than usual…
•emptied then refilled some water to see if that would help
•added daily bacteria supplement
Day 8-
•water quality has started to become poor
•not sure how exactly to fix this reoccurring problem
Day 9-
•tried to refill our tank with fresh water to change the water quality
•added the daily bacteria supplement and de-chlorinator
Day 10-
•water quality was very poor= it was purple and green.
• Fish begin acting a little funny.
• added bacteria and dechlorinator to the tank, as well as fed the fish.
Day 11-
• added clams to the tank
• change half of water out/filled it back up
• water quality was still poor
Day 12-
• one Cory catfish died- it was Stan. :(
• water levels were still not that great
• clams burrowed underneath the gravel
Day 13-
• The other Cory catfish died- Dorthy. :(
• fish began to show signs of ick
• White furry things started to grow on our fish
• Molly Fish (Shirley) began to become vertical in the water
• Fish were barely moving
Day 14-
•Ick got the best of our fish. They were all gone. :(
• there was a cocoon of fungus around the fish
•water quality was awful/water continued to de-color
Day 15-
•Began cleaning out the tank
•Poured the water out, scrubbed the inside walls, cleaned the gravel with warm water. Ran out out of time to completely finish cleaning.
Day 16-
•Finished cleaning out the tank
•added de-chlorinator and bacteria supplements
Day 17-
•Mrs. Wood let us have two small fish to put in the cleaned tank
•acted pretty normal
•didn't seem sick and adjusted to the water pretty well
Day 18-
•the new fish were dead….and I have NO IDEA WHY.
2: Nitrogen cycle-
5: Our aquarium definitely struggled a lot more with this project because of the series of unfortunate events that transpired all throughout these past 8 weeks: such as the ick, and the deaths. The only way that we possibly could have solved these issues, was by completely starting all over again with the cleansing of the tank and things like that.
Day 15-
•Began cleaning out the tank
•Poured the water out, scrubbed the inside walls, cleaned the gravel with warm water. Ran out out of time to completely finish cleaning.
Day 16-
•Finished cleaning out the tank
•added de-chlorinator and bacteria supplements
Day 17-
•Mrs. Wood let us have two small fish to put in the cleaned tank
•acted pretty normal
•didn't seem sick and adjusted to the water pretty well
Day 18-
•the new fish were dead….and I have NO IDEA WHY.
Day 19:
•added clams and more plants.
•nitrites are high today and ammonia is medium.
•still no fish
Day 20:
•after all of the fish we have put in our tank, every one of them has died. It's safe to say we just gave up on it. Not sure exactly why everything kept dying, but I will definitely not be owning any more fish any time soon… Warn your upcoming classes not to get too attached--it only leads you to heartbreak!
V. Conclusion
1. There are many different variables that one must pay attention to when taking care of an aquarium. Let's start out with the key components in the nitrogen cycle. It starts with the ammonia that comes from fish food and fish waste, then nitrosonomas turns the ammonia into nitrites, which in turn changes the nitrites to nitrates through nitrobacter, and the cycle continues. The temperature is important because it must be kept around the same level each day, so that the fish don't have a shock of cold water or hot water, which disrupts their internal balance, and could kill them. Now let's discuss pH, conductivity, and dissolved oxygen. The pH level must be monitored because it is what determines if water is neutral, or if it is leaning towards an acid or a base. The conductivity is the amount of current that is going through the water. If these components are too high or too low, they will also harm your fish's health.
a. Feed fish. The food not eaten by the fish will then create ammonia.
b. Fish eat and digest the food, which creates waste in the water, as well as ammonia.
c. A bacteria in the water called nitrosinomus changes ammonia into nitrites.
d. The plants then absorb the nitrites.
e. After the plants absorb the nitrites, they release them into the water, and nitrobacter changes the nitrites into nitrates so it is safe for the fish to swim around in.
f. The nitrates help the fish flourish, and the cycle continues.
3: Our water quality varied all throughout this process. It started normal, with the ammonia around one and the nitrites around zero. Then the nitrites started to increase while the ammonia stayed the same. But as the nitrites rose continuously, the ammonia started to go up too, which told us that something was off. Our water quality was all over the chart because of the ick that our tank had towards the middle and end of this project. When we thoroughly cleaned our tank again and refilled it with fresh water, the water quality started all over again with nitrites at zero and ammonia at .25 or 1.
4: The Oxygen and Carbon dioxide is very important because it moderates the amount of oxygen and carbon dioxide levels in water all throughout the day. It relates to local ponds and creeks because during the night, oxygen levels are lower and carbon dioxide levels are higher because the sun is not there, which prevents plants from going through photosynthesis. When the sun rises, the level of carbon dioxide decreases and the level of oxygen increases, until noon, when they are opposite of the levels they were at at dawn. When the sun begins to set, the levels begin to change again--oxygen goes down, and carbon dioxide goes up, similar to what happens during the night.
6: I learned-
-that adding a lot of plants to our aquarium helps decrease levels of ammonia
-that it is crucial to be adding bacteria supplements to the water every day in order to keep your nitrite and ammonia levels balanced.
-that ick medicine is something that needs to be obtained immediately after you can see the ick on your face. If not, you end up with dead fish and broken hearts.
-the importance of the nitrogen cycle to the lives of the fish.
7: The most interesting thing that happened during this project was seeing the end result to the ick infestation of our fish. They were incased in a strange and abnormal-looking fungus type material that ended up suffocating them.
8. My favorite part of this project would have to be the anxious feeling I got everyday to come to fourth period and see how my fish were doing. Though we didn't have them for very long, it was interesting to learn about their ecosystem and what helps them flourish and what doesn't.
9. Pay very close attention to your water levels. If you don't see the ammonia levels going down when your nitrites start going up, don't ever hesitate to ask for help or it could cause major damage to your fish. Also, do NOT buy expensive fish!! I would change this project by taking a grade on the number of observations taken each week. That way it's easier to write up the lab report at the end. It makes that a lot easier.