Help with high tech tank
I've browsed these forums over the past few years getting the odd bit of advise (thank you) and have finally decided to start my own post to see if I can get some more specific help with getting my tank into a better state.
I've owned a low tech tank for many years and mid last year I decided to switch to using the EI method and injected co2. Once getting the co2 dialled in this seemed to work fairly well and plant growth definitely increased but I'm still struggling with some green spot algae and just recently BBA has started to appear as well. I recently lost my 7 year old SAE which I'm gutted about and have noticed the hair algae appearing after he was gone so perhaps it has always been present and he kept it in check? Anyway plant health in general looks less than ideal so I'm hoping you guys can point out what I seem to be overlooking.
- Juwel Vision 260 Litre
- Standard Juwel lighting unit 2x 54 watt T5 lighting (Lights on for 9 hours/day)
- 2x Canister filters, AquaOne 1000 & AquaOne 1200
- Drop checker with 4dKH water (usually a lime green when co2 is on, closer to yellow at the end of the photoperiod)
- Pressurised co2 with solenoid regulator and inline co2 diffuser (co2 comes on 1 hour before lights and off 1 hour before lights turn off)
- Temp between 25 - 30 degrees celsius (summer has been hot here in NZ and water temps increasing on hot days)
- Tank is not in direct sunlight/near a window
- I have 2-4cm of aquatic soil capped with filter sand for substrate.
Macro: KNO3 1/2tsp, KH2PO4 1/2tsp, K2SO4 1/2tsp. I had increased KH2PO4 & K2SO4 from recommended doses previously due to pinholes in Lotus leaves and have just continued with this ever since. I dose the dry ferts directly into the tank.
Micro:5ml Seachem Flourish
- Monday: Macros
- Tuesday: Micros
- Wednesday: Macros
- Thursday: Micros
- Friday: Macros
- Saturday: Micros
- Sunday: 50% water change
Only this week have I realised that I should really be dosing Seachem Equilibrium on water change days, it seems like I completely missed that when researching the EI method?!?! The LFS didn't have any in stock but I did grab a bag of MgSO4 and added 1tsp to see if that makes any difference but I think I'll just go get some Seachem Equilibrium this weekend and start dosing that on water change day to make sure I am covered.
Observations with plants:
- Some Java fern leaves are deformed or stunted.
- Older growth on lotus showing pin holes.
- I had a patch of dwarf sag melt but seems to be growing back now.
- Crypt looks a bit sad with occasional leaf melting.
- Sword flowered a few weeks ago.
- Plants still pearling near the end of the photoperiod.
- Of all things I was never able to grow java moss successfully and it eventually all died away?
Reading through all of this now I think I'm seeing my own mistakes...
- I should reduce lighting down to 8 hours/day
- I should have increased my KNO3 dosing when I increased KH2PO4 & K2SO4 doses. To 1tsp? Just seems like so much but I guess the tank is reasonably planted now.
- I should be dosing Equilibrium after each water change.
- I'm wondering if I should also increase Seachem Flourish dose to 10ml? I seem to have trouble finding the right info on this as most people seem to use CSM+B dry ferts but I can't find that here.
I have also wondered if my canister filters are producing enough circulation in my tank and have considered getting a power head. Would this be worthwhile?
Please let me know if I'm on the right path or if there is anything else I should consider. I'll get the test kit out tomorrow and post results if needed.
Last edited by Kyrowire; 03-20-2018 at 07:22 PM.
Reason: Mistyped word.