Short term: one dose of 1ml Excel / gal of tank water. This should kill all of it within 3 days (it will turn orange). Can be done weekly.
Long term: healthy plants. Start with having the right amount (PAR) and quality (PUR) of light for your CO2 level.
If you want us to provide opinions on your entire setup, then post as much of the following info as possible:
- Light (make & model): ideally, PAR and PUR reading at the substrate and photoperiod?
- CO2 setup (if any) and, if you inject CO2, what is the CO2 ppm level and how is it measured?
- Current NO3, PO4, GH, KH, pH and TDS readings?
- What you are dosing (product and quantity) and how often?
- Substrate type and how long has it been in place?
- What is your filter setup?
- Cleaning regimen (filter and water change frequency and amount)?
- Circulation: surface rippling and are all plants gently moving from top to bottom?
- What is your water source and do you use a water softener?
Thanks for the response! Here is the info you requested
So just to make sure, the short term solution is to add 1mL excel/gallon and that will be safe for my shrimp and plants? Also, if I've already dosed 5mL, should I perform a water change before dosing your recommended amount?
My plants are, SR, rotala (colorata, rotund, Enie, AR mini, pearl weed, and dwarf hairgrass.
Light is a Nicrew Deluxe. Here is the thread where someone provided me the part ratings for the light.
My photoperiod is currently 8 hours. Looking into a ramp dimmer to reduce intensity.
CO2- DIY CO2 (citric acid) - 30+ppm based on drop checker (lime green/yellowish)
Nitrate ramps from 5 to 25 ppm throughout the week with EI dosing.
pH 7.6 degassed
Dosing - Thrive (all in one) 3X per week at 2mL per dose (recommended for high light tanks)
Substrate - Eco complete + sand (in place about 1 year but been rescaped)
Filter setup - HOB (CO2 outfitted into intake)
Cleaning - 50% water change weekly, media rinsed in change water, filter cleaned as needed
Circulation - just filter, don't see visible movement of plants
Water source - Well water (water softener), recently been lowering natural nitrate levels by filling tub with floaters and using that water (nitrate sink method).
Let me know if anything else could help!