Safe, 250 g / 8.8 oz

Works like prime, but at a fraction of the cost.

For years I was using SeaChem Prime to treat the tap water for my aquariums. Then I discovered Safe, which is the exact same chemical as Prime, but the per gallon treatment is much less expensive!Weigh out 50 grams of Safe powder to 1000mL of water, mix the two together well. That makes Prime using Safe. 1mL of mixture dechlorinates 10 gallons of water. You can easily put this mixture in a Prime bottle and use the bottle cap to measure like always!FYI 3 drops from a dropper bottle treats one gallon of water. I use a cleaned out reagent dropper bottle from an API water test kit for that purpose. Works great for small volume water changes💦.

I was originally using Seachem Prime to treat my aquarium water and then reading some forums I discovered Safe and decided to do some research on this. It's essentially the same product as Prime just in dry powdered form and more concentrated so you save money in the long run. This product should last me years even with weekly water changes.I have a 30 gallon tank so whenever I do a water change I usually siphon out about 15% of my water. I then put the dose of Safe into my tank as my bucket isn't very large. If you are changing water in a larger tank, you can also treat each individual bucket as you want but I find it easier to just dose the entire tank and then start adding in the new water after making sure it is the same temperature as the water in my tank. This is especially true if you are using a siphon that hooks up to your sink or hose for quick water changes.I follow the instructions from Seachem's website:Directions for all other sizes (this is different if you buy the 50g or 100g sizes!)Use 1.25 g (1/4 tsp.) for every 1,250 L (300 gallons) as needed to reduce chlorine and chloramine or use 1.25 g (1/4 tsp.) for every 300 L (75 gallons) for ammonia.Since my tank is only 30 gallons I use (1/10) of that dose to treat the entire tank. That ends up being 1/40 of a teaspoon so I had to buy some smaller measuring spoons. I use 1/32 of a teaspoon and have seen no ill effects with using this slightly higher dose as you would be using more for ammonia anyways.I've been using Prime for years and now been using Safe for over a month and have had no issues with my fish and chlorine and they seem very happy and healthy. You can also double or triple this dose in an emergency if you and need to quickly detoxify nitrites and nitrates.

I have 3 tanks total; 48, 15 and a 5 gallon. The conversion rate to get the amount I'd need per water change is obscurly small because this stuff is so concentrated, but that's OK with me.I simply wet my small finger, dip it into the product and fill a bucket accordingly with water. Mathematically I'd need 1/24 tsp (or 1/5 gram) to treat 50 gallons, but who can measure that in a normal house. The amount I put in (roughly 1/10 tsp) is ballpark to what the label suggests for treating high ammonia levels.The best part is, the known excess I'm putting into the treated water does a fantastic job of detoxifying ammonia and doesn't negatively impact the fish. It also doesn't have any effect phosphate levels or pH in any way like other products do, especially with the extra I'm likely putting in.I've had the 250 gram container for a few months now and barely put a dent in it. This will likely last me the better part of a year, maybe even two with regular bi-weekly water changes.Way more efficient than using Prime, both financially and in functionality.

I've always used Seachem Prime which is a must have for anyone with an aquarium. This product just ousted Seachem Prime in my opinion. Why? Seachem Safe is crazy cost effective. Just a small bit goes a long way. This bottle will probably last me for the rest of my aquarium keeping life time. Of course not if you keep a dozen 120G tanks and change water every week but for any regular home tank, it would take decades to use this bottle.I wish it came in even smaller sizes given how little you need each time. I also wish it came with measuring spoons for 10/20/50 gallons. I hope Seachem reads this! This is what you should supply with Seachem Safe. Won't take a star off for this though as the value proposition is absolutely 5 stars.Not sure why Amazon asked me to rate "sheerness" and "thickness" though, sorry had to give it 1 star for that. Amazon, you need to have a "not applicable" option, really.Pro-tip: If you have small 5g/10g tanks, it's almost impossible to measure the right amount, all you need is literally a pinch so stick with Prime. If you do have small tanks, google "micro measuring spoons" and get those sets with 1/32 & 1/64 teaspoon sizes.

If you have plants in your tank don’t get this stuff plants need ammonia to grow and thrive, it’s a natural source for the plants but it’s your choice

If you have an aquarium buy this. I have been buying prime forever and it’s great. However, when you have 2 monster fish tanks and 7 nano fish tanks you go through a significant amount of water conditioner. Seachem safe a concentrated seachem prime. I know my water quality it always perfect the water clarity is clear in my clear water tanks and dark brown in my black water tanks with absolutely no cloudiness. You really can’t beat the quality of any seachem products and this is no different. Extremely easy to use and my only regret is not buying this sooner. So again I say if you keep fish in a box buy this.