Soooooooo wondering if anyone here knows or uses an adjustable heater for plastic aquariums??? I have 3 marina tanks (the goldfish ones) they are plastic, i need a good heater...I have tried the marina heaters, they suck :) But i am afraid I am going to melt the plastic or something????
I believe my critter keeper is plastic. I use a 25 watt Marineland adjustable heater. I havent had any problems with it and I've been keeping it on 84 degrees in my 2.5 gallon tank. The heater doesn't get hot to the touch. It just keeps the water warm. :]
I was using the hydor mini for 2-5 gallons. ugh. It would be good for the summer time when the house doesnt get too cold. But it fluctuated like crazy! not good for the winter time.
I'm using a tetra heater for my Sterilite (plastic) clear 3 gallon, it's not adjustable but it works as it says it does. It stays at 78 degrees, turning the red light on when it needs to heat the aquarium up. It's a high enough degree for a betta and 78 degrees shouldn't hurt the plastic tank you have. :)
I'm using the Marineland Stealth Pro 50 watt in my 16.5 gallon growout tub (plastic)...it works for up to 15 gallons and is maintaining a good constant temp even though the tub is a bit big :P. It's $31 USD but it's 100% worth it and no guessing is involved...the knob tells you the temp and the knob glows red if the heater is heating and green when it reaches the set temperature. Highly reccomended :)