oldbloke
Member
- Joined
- 23 May 2013
- Messages
- 518
IMG_4992 by threequartersky, on Flickr
IMG_4990 by threequartersky, on Flickr
Sorry, no ID.
I am not using CO2 at the moment. Do I need to add more EI?
Cheers.
Hi
the top one is Hygrophila, a narrow leaved type.
The bottom one looks like a Bacopa with emmersed leaves melting.How long's it been in the tank ?
Carbon deficiency, without doubt. Either reduce your light, or consider liquid carbon or pressurised CO2. The third option would be to put a soil layer under your current substrate, but this is obviously totally disruptive.
Hyg. corymbosa siamensis + Bac. carolineana
Mick.
We're all allowed to miss one, now and then ...........😉
Mick.
There is aquasoil under the acadama
The above comment is potentially misleading as to the cause of oldbloke's problem. I can only assume that there was some other coincidental factor in your story that prevented your plants' growth, sciencefiction.
Many people, including myself us AquaSoil without any problems. I am using it with moler clay as a cap, so my substrate is very similar to oldbloke's. I am using pressurised CO2 and dosing EI fertiliser, and have yet to see any problems. I can guarantee with a comprehensive fertiliser regimen and some form of carbon supplementation, the plants will flourish.
Hi all,
I'd have a look at your nitrogen and potassium dosing, despite what others may tell you, it is perfectly possible to have healthy green plants with ambient levels of CO2. Leaves can be pale green for a number of reasons, but common ones are lack of nitrogen or potassium, followed by a lack of magnesium, or a very high calcium/magnesium ratio. Usually with magnesium, or iron, deficiency you get interveinal chlorosis, rather than a general paling, and plants need these in much lower amounts of the other essential micro-nutrients than they do for the macro nutrients N & K.
If you have floating plants and they are pale green, it is a very good indicator that you either have too much, or too little light, or you have a deficiency in at least one nutrient. The reason for this is they have access to aerial CO2 at ~400ppm.
Have a look at this one for a bit more explanation: <Duckweed(amazon frogbit) dead. Nutritient deficiency? Which one? | UK Aquatic Plant Society>.
cheers Darrel