
Originally Posted by
bossteck
Hi,
1. It is advisable to get a filter which flow rate is about 2-3 times the volume of your tank and not more than that. With your budget, more likely option would be a made in China type.
2. Another option is to get an internal filter, but it would take up space in your tank (unlike a cannister filter). Depending on the choice of what you intend to keep in your tank, I have known of people who keep heavily planted tanks with very little fishes using only a tiny internal filter or no filters at all.
3. Depends on your choice of plants. But if you plan to get 2 X anything, think about whether it would be easy for you to reach into the tank for maintenance.
4. CO2 cylinder is just the beginning, if you plan to feed CO2 24/7, advisable to get a manual regulator with needle valve (needle valves are use for finer control on the bubbling rate, it is difficult to control the bubble rate using onlt the main tap at the top of your cylinder), if you choose to feed CO2 only during certain timing (which I gathered, most people do, usually at the same time when the lights are on), you will need a solenoid, an electric switch that you can use a timer to control when to open and close. You also should get a bubble counter, so you can visually determine how many bubbles you're feeding. You also have to think about how you plan to dissolve the co2 in your tank, 2 methods of doing this, 1 is by the use of a reactor, a plastic tube with 3 or more bio balls in it, you can connect the reactor to the outlet of your filter, the flow will push the balls and the co2 you feed into the reactor will get dissolve. Another option is to get a diffuser (aka atomizer), it is made of glass (usually), with a ceramic disc on top, co2 fed into the diffuser will exit as tiny bubbles which in theory, will dissolve easier. Flip side of diffuser is that the disc tends to get clogged up over time, but a quick soak in bleech will undo the problem. Good thing about diffuser is that it eliminates the need for a bubble counter as you can see the number of bubbles going into the glass diffuser.
You definitely need a couple of check valves, to prevent water from the tank back flowing into your cylinder.
5. I believe 1 fan would be enough to lower the temp, 2 fans will only help to lower the temperature faster but will not achieve a lower temperature. No experience with HC.
Cheers!
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