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When dosing EI it is usual to change 50% of your water on a water change day. I'm not sure how the all-in-one type of ferts work tho... So it may not need to be as much. That being said I have always changed at least 50% when I have done any of my water changes.

As Alastair said earliest Seachem's Excel is only a liquid form of carbon and doesn't contain any ferts like N, P or K which you will find in things like TPN or some other plant food. So I would carry on with whichever liquid carbon you are using but also pick up an all-in-one fertiliser, like...

I agree, your listed plants have low demands and are the ones that are recommended for low light/low tech tanks. Follow Darrell's advice, he wont steer you wrong. :thumbup: I still think the deficiency is due to to much light. Mainly cos they need more ferts due to the amount of light and...

Yep, I can see your picture. I think the root (no pun intended) of your problem is the duration of your light. I would recommend turning your lights down to between 5-7 hrs. The more light you have the greater the plants will demand Co2 and nutrients. So if you reduce the amount of time your...

Such a good post it was worth posting twice! 11 hours of light is a lot by any standard...Using 2xT5 for that length of time you should defo be pumping Co2 in pressurised and EI dosing. To post pictures u need to upload them to a hosting site eg Photobucket and use the [IMG] tags around the URL.

I dose mine b4 I leave for work, approx. 07:00 to 07:20 and if I forget... when I remember and phone the gf to do it! :thumbup:

I believe that you are able to use it instead, but you need to work out the exact molecular weight so you know how much more/less you need to add. I think there is a different amount of the required for MgSO4.7H20. Clive will be able to explain it all better.

As I understand the "best practise" for water changes, you should change the water b4 or after your photoperiod (and b4 or after your Co2 comes on or goes off). This way you don't impact the usual timings of gas on, lights on, plant growth. In this instance I dose my macro ferts straight after...

I'm not saying that it needs repotting, as I've only just gotten it. I just wanted to know the... process.

So in this instance would you move the tree to a new, slightly larger pot? Or do you trim the roots?

Hey Luis, That looks like Tom B's TPN+ all in one mix? It's not quite EI in my knowledge. If you are unsure about your dosing amounts the FuildSensor Online EI Calculator. It's based on The CEGs EI recipe. I'm currently using it mixed into Macro and Micro (Trace) in 500ml bottles. EDIT: Fixed...

Species is purely by accident as it was an impulse purchase in Aldi. ;) I must admit that I'd read the term "repot" and assumed it mean moving it into a different potentially larger pot/container. But I guess the term could equally mean change the soil for a fresh mix?

After looking at the label it has been decided that my bonsai is a Sageretia. I'll be reading up on their proper care.

Hi tovtm, You've not listed the types of plants that you are growing, some plants are know for slow growth. The other thing, and is that light drives plant growth, so the higher the light the faster they will grow. Just as long as all other demands are met in the right measure (Co2/Ferts). Now...

Thanks guys. I wouldn't imagine I would cause any salt burn with a dilute end of the week EI reused tank water. I'm not sure of the flavour of the tree, but do remember is stay to feed only in Spring-Summer. At what sort of size should I think about repotting? and how often should I replaced...

I too have started putting it on my lawn and it does seem to like it. Maybe I'll go with every forth water. I don't really want it growing to fast! Cos I'll only have to trim it more!

Is it a good idea and use of waste water or will it damage the Bonsai? My care instructions say to stand the tree in water covering the soil for 10-15mins so I thought it would be a good way to give it food without have to get terrestrial plant food. Feel free to tell me it's a stupid idea and...

Lol! Well that's u put in your place! Where did I leave my ADA flag?!?!

I must admit that I find all the information on EI very confusing, least of all calculating the correct amounts for my tank specifically. I've taken to using http://www.fluidsensoronline.com/'s online EI Calculator. This basically allows you to put in either your takes volume or the dimensions...

Hi PeteA! Welcome to UKAPS! You're definitely in the right place for all things Aquascaping and Planted tanks! As a general rule light drives plants demands for other nutrients. So if you have a high amount of light (in relation to your volume of water) your plants will have a high demand for...

Lol! Oooooops! Thanks for correcting me! :thumbup:

A good question. I think you might need some if it is last that long, but I'd wait for the official response! ;)

Jame's Planted Tank's All-in-One (DIY TPN+) calls for 0.5g E300 Ascorbic Acid and 0.2g E202 Potassium Sorbate I believe that the acid is to prevent mold/fugus growth and and the P-Sorbate is to prevent unwanted reactions with the trace. If that is the case could you not use this acid in your mix?

I'm such a geek! I actually lol'd reading that!

Soz CeeJay, I should have made it clear I'm not making a TPN+ style fert. I am mixing KNO3, KH2PO4 and MgSO4 in one bottle and Trace in another.

What! No rare Klingon megawatt waters with extra dilithium crystal juice on the side! I see the need for controlled numbers for testing, but I will be happy with my regular tap water once the deionised water I have runs out. Thanks for the input everyone, has been most helpful. I hope others...

Yeah, that was my thinking as well but I would like someone with a little more experience and chemistry knowledge to say "Yes, you are fine using tap water in your EI mix".

The way I understand the reasoning behind not using tap water and using deionised or RO water is that you can control exactly the amount of each chem you are adding into your tank. But surely a couple of extra ppm of nitrogen in an EI mix isn't gonna hurt?

Hi all, I was wondering if there was any reason not to use regular tap water in our EI mixes? Atm I'm using deionised water in my mix as it was called for in a DIY TPN+ mix.

Ok, I see. Thanks guys! I think the major problem I was having was that the recipe for the DIY TPN+ that I was using previously seemed to have less of the above ingrediants in the same sized bottles and was dosing less ml's. I guess... I was majorly under dosing... On with the EI!

Can someone else run either their numbers or mine to see if they get different results? I'm wondering if it's a browser thing?

Hi all, I was wondering if anyone could help me confirm the number from FluidSensor Online's EI Calculator? If I put my tank size (240litres) into it I get the following. Macro 3.7g Potassium Nitrate (KNO3) 1.4g Monopotassium Phosphate (KH2PO4) 8.9g Magnesium Sulphate (MgSO4)...

I'm a little confused... I have a 240litre tank and using the calculator provide on FSOnline, it tells me that when setting up a 500ml mix of Macro and trace that I have to dose 120ml of each on consecutive days (Macro/Trace/Macro/Trace/Macro/Rest/Rest/WaterChange). That seemed excessively high...

I would imagine that if you are using dry ferts you're not gonna have any additional copper in your dosing. U're able to get dry chems from AquaEssentials and FluidSensorOnline.