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What are the effects of low pH on plant growth and nutrient utilization?
I'm asking because of an odd observation in my own 20g.
I've been trying to read my plants a lot more lately to tell what they need and how fast they go through ferts. My stats are below, but I've noticed that ludwigia peruensis grew in some white leaves after I moved the tank to another room (1.5 weeks ago). I managed to keep 70% of the present water, but they substrate was completely disturbed. Colorless leaves... I believe is a sign of calcium deficiency, yet I have very hard water. I've tried dosing what I can without overdosing. Even so, my growth is stunted throughout the tank. Why? I just third water change to bring the pH back up to norm, got it to 6.8 and in an hour my plants are pearling.
Does pH affect how plants uptake nutrients?
pH was 6.4-6.6 for around 2 weeks
KH 6.5 degr.
GH 11 degr.
Nitrates/Phosphates kept at good levels... 10-15/1 respectively
20H:
4x20W T12 full spect bulbs 12hrs/day
Magnum 220 Canister
Plant Gro Co2 Natural System w/ ladder diffuser slightly modified mixture
1 bag Oxyn Sand
1 bag EcoComplete
Fish (heavy load):
1x Angel (small 3" nose to tail tip)
Several Mollies
2x small Khuli
4x Pristella Tetra
3x Neon Tetra
2x White Tetra
1x Glofish
1x Amano Shrimp
TONSx Malaysian Trumpet
Plants:
Wisteria: Hygrophila difformis
Anacharis
Foxtail??
Limnophila ‘hippuroides’ (Limnophila hippuroides)
Ludwigia Peruensis (Ludwigia peruensis)
Rotala Magenta (Rotala macrandra v. 'narrow leaf')
Tiger Lotus, Red (Nymphaea zenkeri)
Moneywort: Bacopa Monnieri
couple random long leaf swords
I'm asking because of an odd observation in my own 20g.
I've been trying to read my plants a lot more lately to tell what they need and how fast they go through ferts. My stats are below, but I've noticed that ludwigia peruensis grew in some white leaves after I moved the tank to another room (1.5 weeks ago). I managed to keep 70% of the present water, but they substrate was completely disturbed. Colorless leaves... I believe is a sign of calcium deficiency, yet I have very hard water. I've tried dosing what I can without overdosing. Even so, my growth is stunted throughout the tank. Why? I just third water change to bring the pH back up to norm, got it to 6.8 and in an hour my plants are pearling.
Does pH affect how plants uptake nutrients?
pH was 6.4-6.6 for around 2 weeks
KH 6.5 degr.
GH 11 degr.
Nitrates/Phosphates kept at good levels... 10-15/1 respectively
20H:
4x20W T12 full spect bulbs 12hrs/day
Magnum 220 Canister
Plant Gro Co2 Natural System w/ ladder diffuser slightly modified mixture
1 bag Oxyn Sand
1 bag EcoComplete
Fish (heavy load):
1x Angel (small 3" nose to tail tip)
Several Mollies
2x small Khuli
4x Pristella Tetra
3x Neon Tetra
2x White Tetra
1x Glofish
1x Amano Shrimp
TONSx Malaysian Trumpet
Plants:
Wisteria: Hygrophila difformis
Anacharis
Foxtail??
Limnophila ‘hippuroides’ (Limnophila hippuroides)
Ludwigia Peruensis (Ludwigia peruensis)
Rotala Magenta (Rotala macrandra v. 'narrow leaf')
Tiger Lotus, Red (Nymphaea zenkeri)
Moneywort: Bacopa Monnieri
couple random long leaf swords