imisky

Hi

i have been following along with the PPS-Pro dosing method that you came up with, and i am very interested in trying it out. however i have a few questions that didnt get answered after reading through the posts.

i have heard that when dosing macro and micro fert at the same time will cause some ppt but in this method we dose both the micos and macros at the same time does the ppt occour?

i am switching from EI over to PPS-Pro, should i do a big 50% water change before going into PPS-Pro?

i have lighting that is set on a timer having more light on during the after noon for 2 hours will that effect the results of fertalizer uptake i use a 70w MH for main source of light with 2x 14w PCs as noon lighting ( DIY lighting )

thanks for answernig my questions

Edward

Hi imiski
Macro and trace elements can not be mixed together in concentrated solutions but be dosed at the same time in aquarium causes no harm.

It is always better to start clean, removing previously dosed chemicals by water change.

If I understand, you have 2 x 14 W PCs for 2 hours a day. Then 70W MH for ? hours and ? large aquarium?



Thank you
Edward

imisky

hey Edward

i have the 2x 14w PC + 70w MH over a 20g

the lighting hours are as follows:

3:00pm - 6:00pm: MH only
6:00pm - 8:00pm: MH + PC
8:00pm - 10:00pm: MH only ( however i am thinking to make it PC only )

the total light period is 7 hours with 2 hours of peak lighting. what do you think about having only 28W over a 20g for the last 2 hours

Edward

So, you have 3 hours 3.5Wpg MH, then 2 hours 4.9Wpg MH/PC, then 2 hours 3.5Wpg MH.

What I would do is run the MH for 6 hours and the PC optionally for 8 hours.

4PM – 10PM, 70W MH, 3.5Wpg, 6 hours
3PM – 11PM, 2 x 14W PC, 1.4Wpg, 8 hours, optional

or

3PM – 9PM, 70W MH, 3.5Wpg, 6 hours
2PM – 10PM, 2 x 14W PC, 1.4Wpg, 8 hours, optional

or

4PM – 10PM, 70W MH, 3.5Wpg, 6 hours

imisky

Hi Edward,

which of the lighting schedule do you think works best?

i am more interested in this time frame, when you stated 2PM- 10AM did you mean 2PM- 10PM? this will work perfectly with the PPS-Pro dosing method without any issues regarding nutrient uptake?

also another question i have is, are 1L pop bottles ok with this method? i dont think i have access to 1L glass bottles

Edward

All three will work well. Another one is
3PM – 9PM, 70W MH, 3.5Wpg, 6 hours
2PM – 3PM, 2 x 14W PC, 1.4Wpg, 1 hour, optional
9PM – 10PM, 2 x 14W PC, 1.4Wpg, 1 hour, optional

I think Coke and Pepsi bottles should work well. They are built to handle ~2.4 pH.

imisky

thanks edward for the fast replies,

one last question i have is in regard to water changes,

if i was to use water changes with PPS-Pro dosing how many
% water change should i do weekly / monthly? i like to keep
the toxicity of my water colume as low as possible. Or maybe
a small portion daily...maybe like 4 litre of water in a 20 gallon
tank

Thanks,
Eugene

Edward

imisky

i do have CO2(pressurized) going at 30ppm at the moment as i am still using EI until i get my scale and some graduated cylinders for measuring out the amount of liquids. The toxicity i was refering to was the small amounts of ammonia have been getting lately, cant seem to get rid of it even though my tank is heavlily planted and setup for 5 months now. i am starting to think the 50% wc routine with EI is not allowing my tank to cycle properly but thats just me.

also i read that with PPS-Pro a 15ppm CO2 level should be kept and not 30ppm is this correct? my assumption is 30ppm of CO2 and high light will cause the plants to uptake the nutrients at a super fast speed?

Laith

Strange... a heavily planted tank should not show ammonia. Did you calibrate your ammonia test kit?