Veg+Bloom Feed Chart – RO/Soft, Tap/Hard and Shine
Veg+Bloom's own published RO/Soft, Tap/Hard and Shine schedule. Week by week, in grams of powder per litre of water.
- All dosesgrams per litre
- pH5.8 – 6.3 in coco
- Base feedRO/Soft or Tap/Hard
Every figure is grams of powder per litre of water. A 10-litre tank takes ten times what you see: 1.75g per litre is 17.5g in 10 litres. Weigh it, because a heaped spoon of powder can be well out.
Getting it right
- Use one base, not both. RO/Soft and Tap/Hard sit on identical rows because the doses are the same. They are alternatives. Pick the one that suits your water and leave the other on the shelf.
- Match the base to your water. Hydroponic Research recommend RO/Soft for coco, hydro and aero with water between EC 0.0 and 0.3, and Tap/Hard for hydro and aero with water between EC 0.3 and 0.7.
- It is a one-part powder. There is no A and B to keep apart. Add the weighed powder to a full tank and stir until it has completely dissolved before you check anything.
- The base runs flat, then eases off. 1.75g per litre from Grow 1 right through to Flower 3. 1.5g from Flower 4 to Flower 6. 0.75g at Flower 7 and 0.25–0.5g at Flower 8.
- Shine starts at Flower 4. 0.25–0.5g per litre at Flower 4, 5 and 6, then 0.5g at Flower 7 and Flower 8. Nothing before Flower 4.
- Target EC sits at 2.1 for most of the run. It rises to 2.1–2.4 from Flower 4 to Flower 6 while Shine is in, falls to 1.5 at Flower 7 and 0.9–1.2 at Flower 8. The chart assumes water that starts at EC 0.0, so a meter on harder water will read higher by your water's own EC.
- The last column has no doses. Hydroponic Research print a dash for every product in the Finish column, the final one to five days of the cycle.
- Running longer than the chart? For extra vegetative weeks, repeat Grow 2. For extra flowering weeks, repeat Flower 6.
- pH depends on the medium. 5.8–6.3 in coco, 5.5–6.0 in rockwool. Check it after the powder has dissolved.
Everything on the chart
Veg+Bloom RO/Soft
From £20.49
1.75g to 0.25g, Grow 1 to Flower 8
Veg+Bloom Tap/Hard
From £20.49
1.75g to 0.25g, Grow 1 to Flower 8
Veg+Bloom Shine
From £37.49
0.25–0.5g, Flower 4 to Flower 8
Common questions
Is this grams per litre or per 10 litres?
Per one litre, not per 10 litres. 1.75g per litre is 17.5g in a 10-litre tank or 35g in 20 litres.
RO/Soft or Tap/Hard: which one do I need?
Measure the EC of your water before anything goes in. Up to 0.3, Hydroponic Research point you to RO/Soft. Between 0.3 and 0.7, Tap/Hard. The chart doses are the same for both.
I grow in soil. Is this my chart?
Not quite. This schedule is for coco, rockwool and hydro. For soil, Hydroponic Research say to use an inert mix, and they publish a separate schedule for Veg+Bloom Dirty, their base for soil and peat.
Do I have to use Shine?
No. Shine is an add-on for flowering, not part of the base. Leave it out and follow the base rows, but expect your EC to sit under the 2.1–2.4 target from Flower 4 to Flower 6.
Why does the chart restart at 1 for flowering?
Growers count flowering from the switch to 12 hours of light. Hydroponic Research's two veg weeks are Grow 1 and Grow 2, then flowering runs Flower 1 to Flower 8.
Figures as published by Hydroponic Research, the makers of Veg+Bloom, on their own 2026 feed chart, hydroponic-research.com. Always read the label on the bottle you own. Veg+Bloom is a trade mark of its owner.