SKU: 23959512617
co2 fertilizer for aquarium plants

co2 fertilizer for aquarium plants MasterLine Carbo – Liquid Carbon Source for Planted Aquariums

Sale price$22.88 Regular price$25.42
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Ships within 48 hours · Estimated delivery Nov 9 - Nov 14

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Description

co2 fertilizer for aquarium plants MasterLine Carbo – Liquid Carbon Source for Planted AquariumsMasterLine Carbo is a liquid organic carbon supplement for planted aquariums. It provides an additional source of carbon the primary building block of plant biomass that aquatic plants can absorb directly through their leaves. In aquariums without CO injection, it supports plant growth and helps reduce algae. In CO injected aquariums, it can be used as a complementary supplement for additional growth support and algae inhibition. MasterLine Carbo is

MasterLine Carbo is a liquid organic carbon supplement for planted aquariums. It provides an additional source of carbon — the primary building block of plant biomass — that aquatic plants can absorb directly through their leaves. In aquariums without CO₂ injection, it supports plant growth and helps reduce algae. In CO₂-injected aquariums, it can be used as a complementary supplement for additional growth support and algae inhibition.

MasterLine Carbo is recommended for daily dosing and works best when dosed during the lighting period (5–10 minutes before or shortly after lights turn on), when plants are actively photosynthesizing.

Key benefits

  • Liquid carbon source — supports photosynthesis and plant growth
  • Helps reduce algae growth, including GSA, BGA, and staghorn algae
  • Suitable for tanks with and without CO₂ injection
  • Safe for all aquatic life including shrimp
  • Includes graduated measuring cup (2.5–20 ml)

Dosing

  • Daily dosing recommended
  • Dose during or shortly before the lighting period
  • Best used in combination with MasterLine I + II or an All In One formula

Pair with

  • MasterLine I + II — complete two-part fertilizer system
  • MasterLine All In One Golden or Boost — for AIO users
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 23959512617

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Victor
Fort Morgan, US
★★★★★ 1
Too small for the shown size.
Size: XX-Large, Color: Black, Size: XX-Large, Color: Black
I usually would buy XL size but in this case I bought XXL thinking since it's cotton it might shrink. But when I tried the T-shirt it was too small. My older XL sized T-shirt has 2 1/2" larger total shoulder width and 3" wider body width. See attached pictures. Length was also a bit shorter by about 1/2". I will to return it.
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Reviewed in the United States on April 15, 2026
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Pattie B
Dallas, US
★★★★★ 2
Does not match the size
Size: 3X-Large, Color: Blue
Way smaller than the size indicated. Very thin material, almost see- thru.
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Reviewed in the United States on December 5, 2025
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Robert
Belleville, US
★★★★★ 5
Will buy again
Size: XX-Large, Color: White
Very comfortable. Fits as expected,
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Reviewed in the United States on September 15, 2025
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DrEAM
West Palm Beach, US
★★★★★ 5
Super soft, runs small, long tail
High quality, super soft, good neck height, nice price, ready to go right out of the dryer, medium thick material, works well under a sport coat or sweat shirt, snug fit--runs about one size small. Length is about four inches too long. So, ideally made for tall and skinny people (I am short and thick), but going one size up works fine for me except have to tuck it in due to the length.
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Reviewed in the United States on December 26, 2025
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Gabriel King
Massapequa, US
★★★★★ 5
This shirt is a cheat code
Color: Black, White, Navy Blue, Light Gray, Size: XX-Large
These shirt fits my body so perfectly! I’m 6’5” 310 pounds but I look 260 pounds. I sweat easily and I’m very sensitive to the material a piece of clothing is made of. This shirt is lightweight, extremely breathable, and feels like silk on the skin. It compliments and accentuates my contours to enhance my physique. I only tried on one and I’ve already ordered 12 more hehe. This is a cheat code.
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Reviewed in the United States on November 24, 2025

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