Who Gives A Fish Forums

My Water Wisteria is getting out of control. How often should I trim it to keep it healthy but not too bushy? It's in a 20-gallon tank with moderate lighting and CO2.

Trimming Water Wisteria depends on your tank conditions. With CO2 and moderate light, it grows fast. I trim mine every 2 weeks, cutting just above a leaf node. This encourages bushier growth. Make sure your scissors are clean to avoid infections.

I agree with Piccly. Regular trimming keeps it tidy. If you let it go too long, the lower leaves can melt from lack of light. I've had that happen in my 30-gallon. How's your nutrient dosing?

Thanks for the tips. I dose Thrive twice a week. Should I adjust that after trimming?

daisym wrote: ↑Fri Jun 20, 2025 8:36 pm Thanks for the tips. I dose Thrive twice a week. Should I adjust that after trimming?

Nope, keep your dosing schedule. The plant will need those nutrients to recover. Just watch for algae if you're trimming a lot at once.

I trim mine every 3 weeks, but my light's low. It's chill, grows slower. Maybe try trimming less if you don't wanna deal with it as often.

Yo, I just hack mine back whenever it looks messy. Ain't got CO2, so it's slow anyway. Works for me, but my tank's a bit of a jungle vibe.

How do you dispose of the trimmings? I always feel bad throwing them out.

sunsetkid wrote: ↑Sat Jun 21, 2025 1:33 am How do you dispose of the trimmings? I always feel bad throwing them out.

I give mine to friends or sell them locally. Some folks even compost them!

If you're not into selling, you can replant the trimmings. Just stick 'em back into the substrate. They'll root pretty quick with your setup.