Planning on for a simple fish tank monitor. What are the things i would require ?
- Ph meter
- Thermometer
- Solenoid valve
- a pump (12 volt Maybe)
- LCD
Could someone please suggest the brand and specs for the above list and those i may have left out.
Sound right. Have you even tried Googling yourself? If yes, what have you found? And what's the problem with them?
Thanks Spetillion for the reply.
Have you even tried Googling yourself?
I did google, there were a mixed feedback for different brands. So i wanted a stable/robust one before i go ahead purchase. Shipping takes time from ebay and i don't want to end up with the wrong one or an over priced model.
A probe like this maybe
A temp probe like this
about the solenoid and pump. What would be difference ? like when the solenoid is activated the water flows isn't it what the pump also does here ? well pump can push water from A to B.
I always come to the forum when i can't find things on the internet. I know ppl here not there to spoon feed each and everything but to help. We got to do our part first before asking, don't we ? 
Now that's what should have been in your start post 
Temp probe looks fine. No experience with PH probes...
anishkgt:
about the solenoid and pump. What would be difference ? like when the solenoid is activated the water flows isn't it what the pump also does here ? well pump can push water from A to B.
You're asking me what you want to do with a valve???
Yes, a pump pushes water from A to B. A valve does not. It blocks/allows it to flow from A to B when push/pumped. Aka, you can use valves to direct the water the pump pumps to places you want it to go.
omega engineering has all the stuff u need but suppliers of arduinos and shields have ph probes and temp sensors and the pump can be obtained from marine or automotive supplier for 12 volt or try CRobotix in toronto canada as they have pumps,solenoids,PH probes,waterproof temp sensors,arduino and shields
Could you share the links to the websites.
I know nothing about fish, but there have been many questions like this over the years on this forum. Many of the fish fanciers ask about led lights for their aquariums, to simulate daylight hours in the parts of the world their fish originate from, simulate moonlight etc.
Also do you need to control the heater?
Well am not going control the light here. The light on my aquarium is controlled with a simple timed adaptor connected to the wall socket and the light is connected to this adaptor siwtching it on for 7hrs and then switching it off.
Yes i will need to control the temperature as well.
You could probably improve on the lighting, with realistic sunrise/sunset fading & colour changes, moonlight etc. Something to think about for a future enhancement.
How will you control the heater? Can you post a link to the heater's spec?
Yea certainly the lights are for a future enhancements. That would require an RTC and the use of milliseconds and fading codes. Hmmm....... I am not yet very well versed with that side of the code. So once i've learned that, yea i will add to this project.
My idea for the project is to control the Ph concentration in the tank. Ph increases - then drain water and add water.
The temp is something i would probably avoid now. Like the light, it is maintained by another device that i had bought with the tank from Aquarium store.
So i will just need the Ph monitor and probably two pumps, One for draining and the other to re-fill
to review the list here is what i will require
- Ph Probe
- 2 Pumps
- LCD
- Water level sensorli]
Tried searching for the Amonia, Nitrate and Nitrate probe but nothing compatible to the Arduino showed up. Would anyone be knowing if there is one and where i can find it ?
well that's how it is, its not only lowers the Ph but it lowers the Ammonia Nitrite and Nitrate as wel. Hope this helps
Which pH level will you maintain in your aquarium
When considering pH, you should know which pH you will maintain for your aquarium. For example, discus fish love to live in a high pH level, 7.0 maybe the optimal pH level. The same fish will likely thrive at a constant level anywhere between 6.6 and 7.4. and, for their breeding, you should keep 6-6.5 pH level. For a marine aquarium, you should keep a level that is higher than 7 pH level. In other words, a constant pH of 6.6 is better than a pH value which fluctuates between 6.6 and 7.0, even for a fish that prefers a 7.0 reading. more info
Ammonia/Nitrite/Nitrate isn't something you actively monitor.
Any properly set up and established tank should not have a problem with these parameters, and a monthly or even bi monthly check with simple test strips is all you need. There is no reason to waste electricity monitoring stuff that doesn't need to be monitored.
Same goes for pH. The test strips are cheaper than the electricity you're planning on wasting.