Tropical Fish Keeping - Aquarium fish care and resources

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-   -   wet dry on planted tank?? (http://www.tropicalfishkeeping.com/beginner-planted-aquarium/wet-dry-planted-tank-7649/)

porksnorkel 08-19-2007 07:16 PM

wet dry on planted tank??
 
anyone know if a wet dry will put to much oxygen into a planted tank? specifically the eheim wet/dry? if yes, can this be countered w/ more fish, and how much fish would it take...[non specific...like a crap load or just a few extra fish]?

also wondering if there is anyway to run a large air pump on a planted tank in the daytime???

Lupin 08-19-2007 07:24 PM

While I do not use wet/dry filter, if it makes a lot of surface movements, obviously your CO2 will be removed quite easily and you wouldn't want this when you are growing your plants. Don't use air pumps during the day. It is not recommended especially when you are doing CO2 injection. Plants needed the CO2 but will eventually use the oxygen during the night which is the right time for you to switch on your airpump and switch off your CO2.

An overstocked tank alone does not produce sufficient amount of CO2 intended for the plants which is why we resort to CO2 injection to satisfy the needs of the plants.

porksnorkel 08-19-2007 07:27 PM

good point lup. how bout if i just run the wet dry at night?? would the stagnant water in the wet dry rot overnight [oops...daytime i mean]?? and what amount of time would u have the air pump running[or wet /dry in my situation.

porksnorkel 08-19-2007 07:29 PM

and while we are on the subject...if surface movement depletes c02, then i,m guessing HOB filters are not preferred for planted tanks. what is the option to an HOB, or what is the norm for filtration on a planted tank?

Lupin 08-19-2007 07:37 PM

Quote:

Originally Posted by porksnorkel
good point lup. how bout if i just run the wet dry at night??

Won't the bacteria in that type of filter completely die off?:shock:
Quote:

would the stagnant water in the wet dry rot overnight??
Not sure if I completely understand this.:?
Quote:

and what amount of time would u have the air pump running[or wet /dry in my situation.
I used to run it until early morning which is the time I switched on all lighting units.:)

porksnorkel 08-19-2007 07:41 PM

when i asked if the water inside the filter would stagnate, i meant while the filter was off in the daytime. all that water, fish crap, and other organics could make for some funky water if it were sitting in the pump for say 10 hours. [i think i meant to say rot during the daytime...while the filter is off.] my bad...lots of ideas circulating in my wee wittle brain right now.

Lupin 08-19-2007 07:43 PM

Quote:

Originally Posted by porksnorkel
and while we are on the subject...if surface movement depletes c02, then i,m guessing HOB filters are not preferred for planted tanks. what is the option to an HOB, or what is the norm for filtration on a planted tank?

I've never had too much experiences on fiddling with various filtration systems however I did research and your HOB will be alright. A little surface movement never goes amiss there as I had used a gutter filter system before where the water trickles back to the tank but not producing too much surface movements.:) Just make sure your filters do not produce too much surface movements that the CO2 will eventually be dispersed.

fish_4_all 08-19-2007 08:02 PM

I would not recommend shutting of a wet/dry filter for any period of time. If it has even 25% of the beneficial bacteria for the tank then it will die in 1-2 hours let alone 10. This could cause an ammonia spike.

When I injected CO2 into my tanks I made sure that water levels was as high I could get it because I use HOB filters in all of my tanks. The best filter for CO2 injection is a cansiter as there is no surface agitation if set up right and the filter itself is contained so there is no loss of CO2 in the filter. I could get levels as high as 60ppm using HOB filters though so it can be done very effectively.

I have since decided that once I have the funds I will be using Flourish excel almost exlusively in my planted tank because it is so easy to use and does not discipate form the tank.

Now if you do NOT inject CO2 then the more surface agitation the better because just like oxygen, the CO2 will be replaced rfaster and a higher level of CO2 is maintained. Your tank parameters determine what level of CO2 you can have and even in a non-CO2 injected tank you can have 15-20ppm CO2 if the parameters are right.

Just for general knowledge, CO2 and O2 levels will not cause the other to be lower or higher regardless. They are independant of each other and you can have a tank that has saturated levels of O2 and still have 45ppm CO2 and much higher. I have had my plants "pearl" which means I have oxygen saturation and have had CO2 at 60+ppm.

porksnorkel 08-19-2007 08:13 PM

a little off topic, but still ball park...i noticed in the plant guide that there are no catergories for c02 requirement levels. is this because all water plants consume about the same amount of c02??? i'm thinking of trying to bypass c02 injection if possible. this will be a fairly heavily planted tank.

Lupin 08-19-2007 08:15 PM

Quote:

Originally Posted by fish_4_all
I would not recommend shutting of a wet/dry filter for any period of time. If it has even 25% of the beneficial bacteria for the tank then it will die in 1-2 hours let alone 10. This could cause an ammonia spike.

That's what I was thinking too. I'm glad someone is also thinking along the lines.:)
Quote:

When I injected CO2 into my tanks I made sure that water levels was as high I could get it because I use HOB filters in all of my tanks.
That's what I also did with my gutter filter system hence lesser surface movements.


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