I've been trying my hardest to try and get my plants to do well, but many of them are still struggling, so I'm hoping for some help / suggestions on what I can do.
Been running for 8 months
224L 36" x 20" x 19"
Arcadia OT2 4x39W (2x 6500 daylight T5, 2x Growlux T5) with 8 hr period, (2 tubes for 2 hours, 4 tubes for 4 hours, 2 tubes for 2 hours), mounted approx 5" above water level
2x Tetra EX1200 cannisters with spraybar return, pointed up at about 30 degrees to create surface movement
Tap water (water report below), Prime
Pressurised C02, approx 3 BPS (see vid), comes on 2 hours before lights on, green drop checker, micro bubbles sucked into filter intakes.
60% water change per week
EI ferts per week: 30ppm KN03, 30ppm K, 6ppm P04 (macro solution) 1ppm Fe (micro solution)
3x SAE, 6x Odessa Barb, 6x Dwarf rainbow, 4x Otto cats, 1x Banded barb
I put some new plants in about 2-3 weeks ago because alot of the previous ones died, and these seem to be going the same way. My hair grass is going brown, the Limnophila heterophylla is hardly there, the Pogostemon Erectus is not looking happy, tips of the java fern showing signs of deficiency of some sort (don't understand this based on my dosing levels), the Hottania Palustris seems to be vivid and bushy at the tops but everything below is stunted and has algae on the lower leaves.
The plants always seem to wither away or get coated in what I believe to be brown algae / diatoms?, you can see it in the vids on the red plants and on the 'tree' in front of them. I used to have a lot more of this algae over the walls of the tank and wood, but since I increased C02 rate and gave the tank a good scrub during a water change, it seems to be diminishing to a degree.
I thought I had all the elements, good turnover (more than 10x), good C02 levels and distribution, good amount of surface movement, unlimited EI ferts. That leaves light - in certain brighter areas, plants seem to be doing better (in some cases but not all). I thought my period and intensity was ok ?
I'm after that vivid vibrant explosive growth, but my plants (the second lot!) seem to be struggling again in a lot of cases. I've spent quite a bit of money now on plants and I lost as to why I cant ever make them happy !
I have uploaded the video's here:
(sorry for the change of orientation near the end!)
Any suggestions please ?
I appreciate any help.