Thanks guys. I was thinking of more Cardinals and maybe a pair of Gold Rams. I think the bright yellow would go well. My water is good enough for them I think; pH 6.6, KH 3, GH 6, NO3 5 mg/l PO4 0.25 mg/l. I took a water sample to my LFS for testing (they have a computerised testing faclilty better than my liquid reagents). The assistant was very complementary in my water quality.
Lighting - 3 WPG (99W) (mix of Dennerle (3000K), Life-Glo (6700K) and Arcadia (7500K)), with reflectors. On a two timers for sunrise/sunset simulation, 5 hours on - 2 off - 5 on, I find the siesta great for limiting algae growth.
CO2 - Two Nutrafin units, DIY mixture (purchasing compressed setup with solenoid soon)
Substrate - 1 - 3mm fine inert gravel with laterite and 25W heater-cable on timer.
Fertilisers - Dennerle S7, E15 and V30. Pottasium nitrate added to acheive [email protected]
Filtration - Juwel internal (factory fitted) and Fluval 204, outputs dorected to minimise surface agitation. It's probably over-filtered but I like the back-up
Fish - Pair of Angels, 8 Cardinals, 8 Rummynose, 5 Otos, 2 SAEs, 2 Cory julii, 2 Candy-Striped Loach (snail control!)
Plants - Echinodorus bleheri, E. tenellus, Vallisneria torta var. rubra, Rotala indica, Hygrophila polysperma, H. stricta, Limnophila sessilflora, Nymphaea japonicus, Cardimine lyrata, Microsorum pteropus, Vesicularia dubyana, Lysimachia nummularia, Eleocharis acicularis, Vallisneria spiralis
Most plants are pearling after 1 hour of light.