PLANARIA AND HYDRA
Planaria are small off-white, worm-like creatures with a spade-shaped head. They are relatively small and are typically caused by poor tank maintenance, dirty substrate and excess nutrients in the water from overfeeding. While harmless, they are unsightly and can cause swings in water parameters if left to proliferate.
Hydra is typically caused by cross-contamination and poor maintenance. Similar to jellyfish, Hydra's tentacle-like extremities possess stinging cells that allow Hydra to immobilize, kill and feed on smaller aquatic life such as shrimplets and even small nano fish. A Hydra has no brain, no circulatory or respiratory system, nor even any musculature, yet it poses a real danger to small freshwater aquarium livestock.
Notes:
Size: 10g
Established in Taiwan in 2013, SL Aqua develops premium aquarium products designed to help hobbyists build healthy aquatic environments. Their lineup includes freshwater aquarium shrimp food, water conditioners, plant fertilizers, substrates, livestock health products, and small aquarium tools—each created with focus on safety, efficiency, and long-term aquarium stability.
Through natural ingredients and carefully developed formulas, SL Aqua provides reliable solutions for both professionals and everyday hobbyists. From supporting vibrant aquatic plant growth to improving the health of freshwater fish and shrimp, SL Aqua products are trusted by aquarists seeking balanced, nature-inspired aquarium care.
Overall rating: 5.0 / 5 from 7 reviews.
Review topics: [].
"I had a big hydra and planaria infestation and didn't want to use chemicals, but decided that enough was enough. I had my doubts but this was listed at a very reasonable price so I gave it a shot. . . and it worked! Just one dose and the hydra are dead, and I have yet to see another planaria. I removed as many snails as I could, but there are still some alive and well in the tank, even after dosing this product."
"Product worked as described. Happy with my purchase."
"Seems to be taking care if my snail issue!"
"Had a bit of hydra in my cull tank for shrimp. Added the Z1 and the hydra was gone by the end of the next day. The upfront price of Z1 feels high compared to other anti-hydra pesticides like fenbendazole, but this works much better and doesn’t seem to affect the snails and shrimp in any negative way."
"I bought this to get rid of some hydra in my 10 gallon tank. I had to look up conversion from liters to gallons, but it seems that 1 scoop with their provided spoon treats 6.6 gallons, which sounded about right for me since I have some plants and hardscape. You definitely need to dissolve this in water first, and then pour into your tank; even so a lot of powder will float at the top of your water for a while. After a few hours the hydra started to shrink and wilt, and after about 3 days they vanished completely. No harm at all to my adult and baby cherry shrimp."
"I have a 5 gal planted nano shrimp tank that had been overrun with green hydra. I was nervous about treating it due to the small tank volume and of course being paranoid about harming my precious shrimp! I slightly underdosed with this treatment, first suspending the powder in a bit of tank water in a dish and then pouring that into the tank. It didn't really dissolve, but the particles dispersed and were circulated throughout the tank. The next day I could tell that the hydra weren't happy, as they had contracted their tentacles and seemed dormant. This was the case for several days and then I gradually noticed them disappearing, I guess as they died and their bodies disintegrated. After the prescribed treatment period I did a water change. Now, a week later, I don't see any live hydra in the tank, and my shrimp are doing well! One even started carrying eggs during the treatment week. And I have plenty of bio protector left if I need to treat again in the future."
"It did an amazing job!!! after the first 24 hours of using it, there where no hydras in my tank to keep my baby shrimps from dying!!!! thank you so much for they help and getting it to my as soon as you could of :) I approve this item!!! 100% worth the money!"
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